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2 STR$

3 STR$ADD The Add Two Decimal Strings routine adds two decimal strings of digits. Format STR$ADD asign ,aexp ,adigits ,bsign ,bexp ,bdigits ,csign ,cexp ,cdigits 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments asign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the first operand. The asign argument is the address of an unsigned longword containing this sign. A value of 0 is considered positive; a value of 1 is considered negative. aexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which adigits is multiplied to get the absolute value of the first operand. The aexp argument is the address of a signed longword containing this exponent. adigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Text string of unsigned digits representing the absolute value of the first operand before aexp is applied. The adigits argument is the address of a descriptor pointing to this string. This string must be an unsigned decimal number. bsign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the second operand. The bsign argument is the address of an unsigned longword containing the second operand's sign. A value of 0 is considered positive; a value of 1 is considered negative. bexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which bdigits is multiplied to get the absolute value of the second operand. The bexp argument is the address of a signed longword containing the second operand's exponent. bdigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Text string of unsigned digits representing the absolute value of the second operand before bexp is applied. The bdigits argument is the address of a descriptor pointing to this string. This string must be an unsigned decimal number. csign OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by reference Sign of the result. The csign argument is the address of an unsigned longword containing the result's sign. A value of 0 is considered positive; a value of 1 is considered negative. cexp OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Power of 10 by which cdigits is multiplied to get the absolute value of the result. The cexp argument is the address of a signed longword containing this exponent. cdigits OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Text string of unsigned digits representing the absolute value of the result before cexp is applied. The cdigits argument is the address of a descriptor pointing to this string. This string is an unsigned decimal number. 3 STR$ANALYZE_SDESC The Analyze String Descriptor routine extracts the length and starting address of the data for a variety of string descriptor classes. Format STR$ANALYZE_SDESC input-descriptor ,integer-length ,data-address 4 Corresponding_JSB_Entry_Point STR$ANALYZE_SDESC_R1 4 Returns OpenVMS usage:word_unsigned type: word (unsigned) access: write only mechanism: by value Length of the data. The return value is the same value returned to the integer-length argument. 4 Arguments input-descriptor OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Input descriptor from which STR$ANALYZE_SDESC extracts the length of the data and the address at which the data starts. The input- descriptor argument is the address of a descriptor pointing to the input data. integer-length OpenVMS usage:word_unsigned type: word (unsigned) access: write only mechanism: by reference for CALL entry point, by value for JSB entry point Length of the data; this length is extracted from the descriptor by STR$ANALYZE_SDESC. The integer-length argument is the address of an unsigned word integer into which STR$ANALYZE_SDESC writes the data length. data-address OpenVMS usage:address type: longword (unsigned) access: write only mechanism: by reference for CALL entry point, by value for JSB entry point Address of the data; this address is extracted from the descriptor by STR$ANALYZE_SDESC. The data-address argument is an unsigned longword into which STR$ANALYZE_SDESC writes the address of the data. 3 STR$ANALYZE_SDESC_64 (Alpha only.) The Analyze String Descriptor routine extracts the length and starting address of the data for a variety of string descriptor classes. Format STR$ANALYZE_SDESC_64 input-descriptor ,integer-length ,data-address [,descriptor-type] 4 Corresponding_JSB_Entry_Point Refer to the STR$ANALYZE_SDESC routine for information about the JSB entry point, STR$ANALYZE_SDESC_R1. This JSB entry point returns 64-bit results on Alpha systems. 4 Returns OpenVMS usage:quadword_unsigned type: quadword (unsigned) access: write only mechanism: by value Length of the data. The return value is the same value returned to the integer-length argument. 4 Arguments input-descriptor OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Input descriptor from which STR$ANALYZE_SDESC_64 extracts the length of the data and the address at which the data starts. The input-descriptor argument is the address of a descriptor pointing to the input data. The input descriptor can be a longword (unsigned) or a quadword (unsigned). integer-length OpenVMS usage:quadword_unsigned type: quadword (unsigned) access: write only mechanism: by reference for CALL entry point, by value for JSB entry point Length of the data; this length is extracted from the descriptor by STR$ANALYZE_SDESC_64. The integer-length argument is the address of an unsigned quadword integer into which STR$ANALYZE_ SDESC_64 writes the data length. data-address OpenVMS usage:address type: quadword (unsigned) access: write only mechanism: by reference for CALL entry point, by value for JSB entry point Address of the data; this address is extracted from the descriptor by STR$ANALYZE_SDESC_64. The data-address argument is an unsigned quadword into which STR$ANALYZE_SDESC_64 writes the address of the data. descriptor-type OpenVMS usage:word_unsigned type: word (unsigned) access: write only mechanism: by reference Flag value indicating the type of input descriptor. The descriptor-type argument contains the address of an unsigned word integer to which STR$ANALYZE_SDESC_64 writes a zero (0) for a 32-bit input descriptor or a one (1) for a 64-bit descriptor. This argument is optional. 3 STR$APPEND The Append String routine appends a source string to the end of a destination string. Format STR$APPEND destination-string ,source-string 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string to which STR$APPEND appends the source string. The destination-string argument is the address of a descriptor pointing to the destination string. This destination string must be dynamic or varying length. The maximum length of the destination string for a 32-bit descriptor is 2**16-1, or 65,535, bytes. On Alpha systems, the maximum length of the destination string for all 64-bit descriptor classes, except varying-length strings, is 2**64-1 bytes. The maximum length of a varying-length string is 2**16-1 for both 32-bit and 64-bit descriptors. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string that STR$APPEND appends to the end of the destination string. The source-string argument is the address of a descriptor pointing to this source string. 3 STR$CASE_BLIND_COMPARE The Compare Strings Without Regard to Case routine compares two input strings of any supported class and data type without regard to whether the alphabetic characters are uppercase or lowercase. Format STR$CASE_BLIND_COMPARE first-source-string ,second-source-string 4 Returns OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by value The values returned by STR$CASE_BLIND_COMPARE and the conditions to which they translate are as follows: Returned Value Condition -1 first-source-string is less than second-source- string. 0 Both are the same (with blank fill for shorter string). 1 first-source-string is greater than second-source- string. 4 Arguments first-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First string. The first-source-string argument is the address of a descriptor pointing to the first string. second-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second string. The second-source-string argument is the address of a descriptor pointing to the second string. 3 STR$COMPARE The Compare Two Strings routine compares the contents of two strings. Format STR$COMPARE first-source-string ,second-source-string 4 Returns OpenVMS usage:longword_signed type: longword integer (signed) access: write only mechanism: by value The values returned by STR$COMPARE and the conditions to which they translate are as follows: Returned Value Condition -1 first-source-string is less than second-source- string. 0 first-source-string is equal to second-source- string. 1 first-source-string is greater than second-source- string. 4 Arguments first-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First string. The first-source-string argument is the address of a descriptor pointing to the first string. second-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second string. The second-source-string argument is the address of a descriptor pointing to the second string. 3 STR$COMPARE_EQL The Compare Two Strings for Equality routine compares two strings to see if they have the same length and contents. Uppercase and lowercase characters are not considered equal. Format STR$COMPARE_EQL first-source-string ,second-source-string 4 Returns OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by value The values returned by STR$COMPARE and the conditions to which they translate are as follows: Returned Value Condition 0 The length and the contents of first-source-string are equal to the length and contents of second- source-string. 1 Either the length of first-source-string is not equal to the length of second-source-string, or the contents of first-source-string are not equal to the contents of second-source-string, or both. 4 Arguments first-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First source string. The first-source-string argument is the address of a descriptor pointing to the first source string. second-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second source string. The second-source-string argument is the address of a descriptor pointing to the second source string. 3 STR$COMPARE_MULTI The Compare Two Strings for Equality Using Multinational Character Set routine compares two character strings for equality using the DEC Multinational Character Set. Format STR$COMPARE_MULTI first-source-string ,second-source-string [,flags-value] [,foreign-language] 4 Returns OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by value The values returned by STR$COMPARE_MULTI and the conditions to which they translate are as follows: Returned Value Condition -1 first-source-string is less than second-source- string. 0 Both strings are the same; the shorter string is blank filled. 1 first-source-string is greater than second-source- string. 4 Arguments first-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First string in the comparison. The first-source-string argument is the address of a descriptor pointing to the first string. second-source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second string in the comparison. The second-source-string argument is the address of a descriptor pointing to the second string. flags-value OpenVMS usage:mask_longword type: longword (unsigned) access: read only mechanism: by value A single flag bit. The flags-value argument is a signed longword integer that contains this flag bit. The flags-value argument indicates whether the comparison is to be case sensitive or case blind. The default value of flags-value is 0, indicating a case sensitive comparison. The following table lists the meaning of the bit values: Value Meaning 0 Uppercase and lowercase characters are not equivalent. (The comparison is case sensitive.) 1 Uppercase and lowercase characters are equivalent. (The comparison is case blind.) foreign-language OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by value Indicator that determines the foreign language table to be used. The foreign-language argument is an unsigned longword that contains this foreign language table indicator. The default value of foreign-language is 1. The following table lists the value of the foreign-language argument associated with each language table: Value Language 1 Multinational table 2 Danish table 3 Finnish/Swedish table 4 German table 5 Norwegian table 6 Spanish table 3 STR$CONCAT The Concatenate Two or More Strings routine concatenates all specified source strings into a single destination string. Format STR$CONCAT destination-string ,source-string [,source-string...] 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$CONCAT concatenates all specified source strings. The destination-string argument is the address of a descriptor pointing to this destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First source string; STR$CONCAT requires at least one source string. The source-string argument is the address of a descriptor pointing to the first source string. The maximum number of source strings that STR$CONCAT allows is 254. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Additional source strings; STR$CONCAT requires at least one source string. The source-string argument is the address of a descriptor pointing to the additional source string. The maximum number of source strings that STR$CONCAT allows is 254. 3 STR$COPY_DX The Copy a Source String Passed by Descriptor to a Destination String routine copies a source string to a destination string. Both strings are passed by descriptor. Format STR$COPY_DX destination-string ,source-string 4 Corresponding_JSB_Entry_Point STR$COPY_DX_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$COPY_DX writes the source string. Depending on the class of the destination string, the following actions occur: Descriptor Class Action S, Z, SD, A, Copy the source string. If needed, fill space or NCA truncate on the right. D If the area specified by the destination descriptor is large enough to contain the source string, copy the source string and set the new length in the destination descriptor. If the area specified is not large enough, return the previous space allocation (if any) and then dynamically allocate the amount of space needed. Copy the source string and set the new length and address in the destination descriptor. VS Copy the source string to the destination string up to the limit of the descriptor's MAXSTRLEN field with no padding. Adjust the string's current length (CURLEN) field to the actual number of bytes copied. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string that STR$COPY_DX copies into the destination string; the descriptor class of the source string can be unspecified, fixed length, dynamic length, scalar decimal, array, noncontiguous array, or varying length. The source-string argument is the address of a descriptor pointing to this source string. (See the description of LIB$ANALYZE_SDESC for possible restrictions.) 3 STR$COPY_R The Copy a Source String Passed by Reference to a Destination String routine copies a source string passed by reference to a destination string passed by descriptor. Format STR$COPY_R destination-string ,word-integer-source-length ,source-string-address 4 Corresponding_JSB_Entry_Point STR$COPY_R_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$COPY_R copies the source string. The destination-string argument is the address of a descriptor pointing to the destination string. The class field determines the appropriate action. See the description of LIB$ANALYZE_SDESC for restrictions associated with specific descriptor classes. word-integer-source-length OpenVMS usage:word_unsigned type: word (unsigned) access: read only mechanism: by reference Length of the source string. The word-integer-source-length argument is the address of an unsigned word containing the length of the source string. source-string-address OpenVMS usage:char_string type: character string access: read only mechanism: by reference Source string that STR$COPY_R copies into the destination string. The source-string-address argument is the address of the source string. 3 STR$COPY_R_64 (Alpha only.) The Copy a Source String Passed by Reference to a Destination String routine copies a source string passed by reference to a destination string passed by descriptor. Format STR$COPY_R_64 destination-string ,quad-integer-source-length ,source-string-address 4 Corresponding_JSB_Entry_Point STR$COPY_R_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$COPY_R_64 copies the source string. The destination-string argument is the address of a descriptor pointing to the destination string. The class field determines the appropriate action. See the description of LIB$ANALYZE_SDESC for restrictions associated with specific descriptor classes. quad-integer-source-length OpenVMS usage:quadword_unsigned type: quadword (unsigned) access: read only mechanism: by reference Length of the source string. The quad-integer-source-length argument is the address of an unsigned quadword containing the length of the source string. source-string-address OpenVMS usage:char_string type: character string access: read only mechanism: by reference Source string that STR$COPY_R_64 copies into the destination string. The source-string-address argument is the address of the source string. 3 STR$DIVIDE The Divide Two Decimal Strings routine divides two decimal strings. Format STR$DIVIDE asign ,aexp ,adigits ,bsign ,bexp ,bdigits ,total-digits ,round-truncate-indicator ,csign ,cexp ,cdigits 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments asign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the first operand. The asign argument is the address of an unsigned longword containing the sign of the first operand. A value of 0 is considered positive; a value of 1 is considered negative. aexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which adigits is multiplied to get the absolute value of the first operand. The aexp argument is the address of the first operand's exponent. adigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First operand's numeric text string. The adigits argument is the address of a descriptor pointing to the first operand's numeric string. The string must be an unsigned decimal number. bsign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the second operand. The bsign argument is the address of an unsigned longword containing the second operand's string. A value of 0 is considered positive; a value of 1 is considered negative. bexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which bdigits is multiplied to get the absolute value of the second operand. The bexp argument is the address of the second operand's exponent. bdigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second operand's numeric text string. The bdigits argument is the address of a descriptor pointing to the second operand's number string. The string must be an unsigned decimal number. total-digits OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Number of digits to the right of the decimal point. The total- digits argument is the address of a signed longword containing the number of total digits. STR$DIVIDE uses this number to carry out the division. round-truncate-indicator OpenVMS usage:mask_longword type: longword (unsigned) access: read only mechanism: by reference Indicator of whether STR$DIVIDE is to round or truncate the result; a value of 0 means truncate; a value of 1 means round. The round-truncate-indicator argument is the address of a longword bit mask containing this indicator. csign OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by reference Sign of the result. The csign argument is the address of an unsigned longword containing the sign of the result. A value of 0 is considered positive; a value of 1 is considered negative. cexp OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Power of 10 by which cdigits is multiplied to get the absolute value of the result. The cexp argument is the address of a signed longword containing the exponent. cdigits OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Result's numeric text string. The cdigits argument is the address of a descriptor pointing to the numeric string of the result. This string is an unsigned decimal number. 3 STR$DUPL_CHAR The Duplicate Character n Times routine generates a string containing n duplicates of the input character. If the destination string is an "empty" dynamic-length string descriptor, STR$DUPL_CHAR allocates and initializes the string. Format STR$DUPL_CHAR destination-string [,repetition-count] [,ASCII-character] 4 Corresponding_JSB_Entry_Point STR$DUPL_CHAR_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$DUPL_CHAR writes repetition- count copies of the input character. The destination-string argument is the address of a descriptor pointing to the destination string. The maximum length of the destination string for a 32-bit descriptor is 2**16-1, or 65,535, bytes. On Alpha systems, the maximum length of the destination string for all 64-bit descriptor classes, except varying strings, is 2**64-1 bytes. The maximum length of a varying-length string is 2**16-1 for both 32-bit and 64-bit descriptors. repetition-count OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Number of times ASCII-character is duplicated; this is an optional argument (if omitted, the default is 1). The repetition- count argument is the address of a signed longword containing the number. ASCII-character OpenVMS usage:char_string type: character string access: read only mechanism: by reference ASCII character that STR$DUPL_CHAR writes repetition-count times into the destination string. The ASCII-character argument is the address of a character string containing this character. This is an optional argument; if omitted, the default is a space. 3 STR$ELEMENT The Extract Delimited Element Substring routine extracts an element from a string in which the elements are separated by a specified delimiter. Format STR$ELEMENT destination-string ,element-number ,delimiter-string ,source-string 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$ELEMENT copies the selected substring. The destination-string argument is the address of a descriptor pointing to the destination string. element-number OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Element number of the delimited element substring to be returned. The element-number argument is the address of a signed longword containing the desired element number. Zero is used to represent the first delimited element substring, one is used to represent the second, and so forth. delimiter-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Delimiter string used to separate element substrings. The delimiter-string argument is the address of a descriptor pointing to the delimiter string. The delimiter-string argument must be exactly one character long. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string from which STR$ELEMENT extracts the requested delimited substring. The source-string argument is the address of a descriptor pointing to the source string. 3 STR$FIND_FIRST_IN_SET The Find First Character in a Set of Characters routine searches a string, comparing each character to the characters in a specified set of characters. The string is searched character by character, from left to right. STR$FIND_FIRST_IN_SET returns the position of the first character in the string that matches any of the characters in the selected set of characters. Format STR$FIND_FIRST_IN_SET source-string ,set-of-characters 4 Returns OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by value Position in source-string where the first match is found; zero if no match is found. On Alpha systems, if the relative position of the substring can exceed 2**32-1, assign the return value to a quadword to ensure that you retrieve the correct relative position. 4 Arguments source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor String that STR$FIND_FIRST_IN_SET compares to the set of characters, looking for the first match. The source-string argument is the address of a descriptor pointing to the character string. set-of-characters OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Set of characters that STR$FIND_FIRST_IN_SET is searching for in the string. The source-string argument is the address of a descriptor pointing to the set of characters. 3 STR$FIND_FIRST_NOT_IN_SET The Find First Character That Does Not Occur in Set routine searches a string, comparing each character to the characters in a specified set of characters. The string is searched character by character, from left to right. STR$FIND_FIRST_NOT_IN_SET returns the position of the first character in the string that does not match any of the characters in the selected set of characters. Format STR$FIND_FIRST_NOT_IN_SET source-string ,set-of-characters 4 Returns OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by value Position in source-string where a nonmatch was found. On Alpha systems, if the relative position of the substring can exceed 2**32-1, assign the return value to a quadword to ensure that you retrieve the correct relative position. Returned value Condition 0 Either all characters in source-string match some characters in set-of-characters, or there were no characters in set-of-characters. 1 Either the first nonmatching character in source- string was found in position 1, or there were no characters in source-string. N The first nonmatching character was found in position N within source-string. 4 Arguments source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor String that STR$FIND_FIRST_NOT_IN_SET searches. The source-string argument is the address of a descriptor pointing to the string. set-of-characters OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor The set of characters that STR$FIND_FIRST_NOT_IN_SET compares to the string, looking for a nonmatch. The set-of-characters argument is the address of a descriptor pointing to this set of characters. 3 STR$FIND_FIRST_SUBSTRING The Find First Substring in Input String routine finds the first substring (in a provided list of substrings) occurring in a given string. Format STR$FIND_FIRST_SUBSTRING source-string ,index ,substring-index ,substring [,substring...] 4 Returns OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by value The values returned by STR$FIND_FIRST_SUBSTRING and the conditions to which they translate are as follows: Returned Value Condition 0 source-string did not contain any of the specified substrings. 1 STR$FIND_FIRST_SUBSTRING found at least one of the specified substrings in source-string. 4 Arguments source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor String that STR$FIND_FIRST_SUBSTRING searches. The source-string argument is the address of a descriptor pointing to the string. index OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Earliest position within source-string at which STR$FIND_FIRST_ SUBSTRING found a matching substring; zero if no matching substring was found. The index argument is the address of a signed longword containing this position. substring-index OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Ordinal number of the substring that matched (1 for the first, 2 for the second, and so on), or zero if STR$FIND_FIRST_SUBSTRING found no substrings that matched. The substring-index argument is the address of a signed longword containing this ordinal number. substring OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Specified substring for which STR$FIND_FIRST_SUBSTRING searches in source-string. The substring argument is the address of a descriptor pointing to the first substring. You can specify multiple substrings to search for. substring OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Additional specified substring for which STR$FIND_FIRST_SUBSTRING searches in source-string. The substring argument is the address of a descriptor pointing to the substring. You can specify multiple substrings to search for. 3 STR$FREE1_DX The Free One Dynamic String routine deallocates one dynamic string. Format STR$FREE1_DX string-descriptor 4 Corresponding_JSB_Entry_Point STR$FREE1_DX_R4 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Argument string-descriptor OpenVMS usage:char_string type: character string access: modify mechanism: by descriptor Dynamic string descriptor of the dynamic string that STR$FREE1_ DX deallocates. The string-descriptor argument is the address of a descriptor pointing to the string to be deallocated. The descriptor's CLASS field is checked. 3 STR$GET1_DX The Allocate One Dynamic String routine allocates a specified number of bytes of virtual memory to a specified dynamic string descriptor. Format STR$GET1_DX word-integer-length ,character-string 4 Corresponding_JSB_Entry_Point STR$GET1_DX_R4 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments word-integer-length OpenVMS usage:word_unsigned type: word (unsigned) access: read only mechanism: by reference Number of bytes that STR$GET1_DX allocates. The word-integer- length argument is the address of an unsigned word containing this number. character-string OpenVMS usage:char_string type: character string access: modify mechanism: by descriptor Dynamic string descriptor to which STR$GET1_DX allocates the area. The character-string argument is the address of the descriptor. The descriptor's CLASS field is checked. 3 STR$GET1_DX_64 (Alpha only.) The Allocate One Dynamic String routine allocates a specified number of bytes of virtual memory to a specified dynamic string descriptor. Format STR$GET1_DX_64 quad-integer-length ,character-string 4 Corresponding_JSB_Entry_Point STR$GET1_DX_R4 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments quad-integer-length OpenVMS usage:quadword_unsigned type: quadword (unsigned) access: read only mechanism: by reference Number of bytes that STR$GET1_DX_64 allocates. The quad-integer- length argument is the address of an unsigned quadword containing this number. character-string OpenVMS usage:char_string type: character string access: modify mechanism: by descriptor Dynamic string descriptor to which STR$GET1_DX_64 allocates the area. The character-string argument is the address of the descriptor. The descriptor's CLASS field is checked. 3 STR$LEFT The Extract a Substring of a String routine copies a substring beginning at the first character of a source string into a destination string. Format STR$LEFT destination-string ,source-string ,end-position 4 Corresponding_JSB_Entry_Point STR$LEFT_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$LEFT copies the substring. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string from which STR$LEFT extracts the substring that it copies into the destination string. The source-string argument is the address of a descriptor pointing to the source string. end-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Relative position in the source string at which the substring ends. The end-position argument is the address of a signed longword containing the ending position. STR$LEFT copies all characters in the source string from position 1 (the leftmost position) to the position number specified in this end-position argument. 3 STR$LEN_EXTR The Extract a Substring of a String routine copies a substring of a source string into a destination string. Format STR$LEN_EXTR destination-string ,source-string ,start-position ,longword-integer-length 4 Corresponding_JSB_Entry_Point STR$LEN_EXTR_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$LEN_EXTR copies the substring. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string from which STR$LEN_EXTR extracts the substring that it copies into the destination string. The source-string argument is the address of a descriptor pointing to the source string. start-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Relative position in the source string at which STR$LEN_EXTR begins copying the substring. The start-position argument is the address of a signed longword containing the starting position. longword-integer-length OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Number of characters in the substring that STR$LEN_EXTR copies to the destination string. The longword-integer-length argument is the address of a signed longword containing the length of the substring. 3 STR$MATCH_WILD The Match Wildcard Specification routine compares a pattern string that includes wildcard characters with a candidate string. Format STR$MATCH_WILD candidate-string ,pattern-string 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value Returns a condition value of STR$_MATCH if the strings match and STR$_NOMATCH if they do not match. 4 Arguments candidate-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor String that is compared to the pattern string. The candidate- string argument is the address of a descriptor pointing to the candidate string. pattern-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor String containing wildcard characters. The pattern-string argument is the address of a descriptor pointing to the pattern string. The wildcards in the pattern string are translated when STR$MATCH_WILD searches the candidate string to determine if it matches the pattern string. 3 STR$MUL The Multiply Two Decimal Strings routine multiplies two decimal strings. Format STR$MUL asign ,aexp ,adigits ,bsign ,bexp ,bdigits ,csign ,cexp ,cdigits 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments asign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the first operand. The asign argument is the address of an unsigned longword containing the first operand's sign. A value of 0 is considered positive; a value of 1 is considered negative. aexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which adigits is multiplied to get the absolute value of the first operand. The aexp argument is the address of a signed longword containing this exponent. adigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First operand's numeric text string. The adigits argument is the address of a descriptor pointing to the numeric string of the first operand. The string must be an unsigned decimal number. bsign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the second operand. The bsign argument is the address of an unsigned longword containing the sign of the second operand. A value of 0 is considered positive; a value of 1 is considered negative. bexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which bdigits is multiplied to get the absolute value of the second operand. The bexp argument is the address of a signed longword containing this exponent. bdigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second operand's numeric text string. The bdigits argument is the address of a descriptor pointing to the second operand's numeric string. The string must be an unsigned decimal number. csign OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by reference Sign of the result. The csign argument is the address of an unsigned longword containing the sign of the result. A value of 0 is considered positive; a value of 1 is considered negative. cexp OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Power of 10 by which cdigits is multiplied to get the absolute value of the result. The cexp argument is the address of a signed longword containing this exponent. cdigits OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Result's numeric text string. The cdigits argument is the address of a descriptor pointing to the numeric string of the result. The string is an unsigned decimal number. 3 STR$POSITION The Return Relative Position of Substring routine searches for the first occurrence of a single substring within a source string. If STR$POSITION finds the substring, it returns the relative position of that substring. If the substring is not found, STR$POSITION returns a zero. Format STR$POSITION source-string ,substring [,start-position] 4 Corresponding_JSB_Entry_Point STR$POSITION_R6 4 Returns OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by value Relative position of the first character of the substring. Zero is the value returned if STR$POSITION did not find the substring. On Alpha systems, if the relative position of the substring can exceed 2**32-1, assign the return value to a quadword to ensure that you retrieve the correct relative position. 4 Arguments source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string within which STR$POSITION searches for the substring. The source-string argument is the address of a descriptor pointing to the source string. substring OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Substring for which STR$POSITION searches. The substring argument is the address of a descriptor pointing to the substring. start-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Relative position in the source string at which STR$POSITION begins the search. The start-position argument is the address of a signed longword containing the starting position. Although this is an optional argument, it is required if you are using the JSB entry point. If start-position is not supplied, STR$POSITION starts the search at the first character position of source-string. 3 STR$POS_EXTR The Extract a Substring of a String routine copies a substring of a source string into a destination string. Format STR$POS_EXTR destination-string ,source-string ,start-position ,end-position 4 Corresponding_JSB_Entry_Point STR$POS_EXTR_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$POS_EXTR copies the substring. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string from which STR$POS_EXTR extracts the substring that it copies into the destination string. The source-string argument is the address of a descriptor pointing to the source string. start-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference for CALL entry point, by value for JSB entry point Relative position in the source string at which STR$POS_EXTR begins copying the substring. The start-position argument is the address of a signed longword containing the starting position. end-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference for CALL entry point, by value for JSB entry point Relative position in the source string at which STR$POS_EXTR stops copying the substring. The end-position argument is the address of a signed longword containing the ending position. 3 STR$PREFIX The Prefix a String routine inserts a source string at the beginning of a destination string. The destination string must be dynamic or varying length. Format STR$PREFIX destination-string ,source-string 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string (dynamic or varying length). STR$PREFIX copies the source string into the beginning of this destination string. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string that STR$PREFIX copies into the beginning of the destination string. The source-string argument is the address of a descriptor pointing to the source string. 3 STR$RECIP The Reciprocal of a Decimal String routine takes the reciprocal of the first decimal string to the precision limit specified by the second decimal string and returns the result as a decimal string. Format STR$RECIP asign ,aexp ,adigits ,bsign ,bexp ,bdigits ,csign ,cexp ,cdigits 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments asign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the first operand. The asign argument is the address of an unsigned longword containing the first operand's sign. A value of 0 is considered positive; a value of 1 is considered negative. aexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which adigits is multiplied to get the absolute value of the first operand. The aexp argument is the address of a signed longword containing this exponent. adigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor First operand's numeric text string. The adigits argument is the address of a descriptor pointing to the first operand's numeric string. The string must be an unsigned decimal number. bsign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the second operand. The bsign argument is the address of an unsigned longword containing the sign of the second operand. A value of 0 is considered positive; a value of 1 is considered negative. bexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which bdigits is multiplied to get the absolute value of the second operand. The bexp argument is the address of a signed longword containing this exponent. bdigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Second operand's numeric text string. The bdigits argument is the address of a descriptor pointing to the second operand's numeric string. The string must be an unsigned decimal number. csign OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by reference Sign of the result. The csign argument is the address of an unsigned longword containing the result's sign. A value of 0 is considered positive; a value of 1 is considered negative. cexp OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Power of 10 by which cdigits is multiplied to get the absolute value of the result. The cexp argument is the address of a signed longword containing this exponent. cdigits OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Result's numeric text string. The cdigits argument is the address of a descriptor pointing to the result's numeric string. The string is an unsigned decimal number. 3 STR$REPLACE The Replace a Substring routine copies a source string to a destination string, replacing part of the string with another string. The substring to be replaced is specified by its starting and ending positions. Format STR$REPLACE destination-string ,source-string ,start-position ,end-position ,replacement-string 4 Corresponding_JSB_Entry_Point STR$REPLACE_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$REPLACE writes the new string created when it replaces the substring. The destination- string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string. The source-string argument is the address of a descriptor pointing to the source string. start-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference for CALL entry point, by value for JSB entry point Position in the source string at which the substring that STR$REPLACE replaces begins. The start-position argument is the address of a signed longword containing the starting position. The position is relative to the start of the source string. end-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference for CALL entry point, by value for JSB entry point Position in the source string at which the substring that STR$REPLACE replaces ends. The end-position argument is the address of a signed longword containing the ending position. The position is relative to the start of the source string. replacement-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Replacement string with which STR$REPLACE replaces the substring. The replacement-string argument is the address of a descriptor pointing to this replacement string. The value of replacement- string must be equal to end-position minus start-position. 3 STR$RIGHT The Extract a Substring of a String routine copies a substring ending at the last character of a source string into a destination string. Format STR$RIGHT destination-string ,source-string ,start-position 4 Corresponding_JSB_Entry_Point STR$RIGHT_R8 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$RIGHT copies the substring. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string from which STR$RIGHT extracts the substring that it copies into the destination string. The source-string argument is the address of a descriptor pointing to the source string. start-position OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference for CALL entry point, by value for JSB entry point Relative position in the source string at which the substring that STR$RIGHT copies starts. The start-position argument is the address of a signed longword containing the starting position. 3 STR$ROUND The Round or Truncate a Decimal String routine rounds or truncates a decimal string to a specified number of significant digits and places the result in another decimal string. Format STR$ROUND places ,flags ,asign ,aexp ,adigits ,csign ,cexp ,cdigits 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments places OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Maximum number of decimal digits that STR$ROUND retains in the result. The places argument is the address of a signed longword containing the number of decimal digits. flags OpenVMS usage:mask_longword type: longword (unsigned) access: read only mechanism: by reference Function flag. A value of 0 indicates that the decimal string is rounded; a value of 1 indicates that it is truncated. The flags argument is the address of an unsigned longword containing this function flag. asign OpenVMS usage:longword_unsigned type: longword (unsigned) access: read only mechanism: by reference Sign of the decimal input string to be rounded or truncated. The asign argument is the address of an unsigned longword string containing this sign. A value of 0 is considered positive; a value of 1 is considered negative. aexp OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by reference Power of 10 by which adigits is multiplied to get the absolute value of the decimal input string. The aexp argument is the address of a signed longword containing this exponent. adigits OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Decimal input string. This is the string of digits to which asign and aexp are applied. The adigits argument is the address of a descriptor pointing to this numeric string. The string must be an unsigned decimal number. csign OpenVMS usage:longword_unsigned type: longword (unsigned) access: write only mechanism: by reference Sign of the result. The csign argument is the address of an unsigned longword containing the result's sign. A value of 0 is considered positive; a value of 1 is considered negative. cexp OpenVMS usage:longword_signed type: longword (signed) access: write only mechanism: by reference Power of 10 by which cdigits is multiplied to get the absolute value of the result. The cexp argument is the address of a signed longword containing this exponent. cdigits OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Result's numeric text string. The cdigits argument is the address of a descriptor pointing to this numeric string. The string is an unsigned decimal number. 3 STR$TRANSLATE The Translate Matched Characters routine successively compares each character in a source string to all characters in a match string. If a source character has a match, the destination character is taken from the translate string. Otherwise, STR$TRANSLATE moves the source character to the destination string. Format STR$TRANSLATE destination-string ,source-string ,translation-string ,match-string 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string. The source-string argument is the address of a descriptor pointing to the source string. translation-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Translate string. The translation-string argument is the address of a descriptor pointing to the translate string. match-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Match string. The match-string argument is the address of a descriptor pointing to the match string. 3 STR$TRIM The Trim Trailing Blanks and Tabs routine copies a source string to a destination string and deletes the trailing blank and tab characters. Format STR$TRIM destination-string ,source-string [,resultant-length] 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$TRIM copies the trimmed string. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string which STR$TRIM trims and then copies into the destination string. The source-string argument is the address of a descriptor pointing to the source string. resultant-length OpenVMS usage:word_unsigned type: word (unsigned) access: write only mechanism: by reference Number of bytes that STR$TRIM writes into destination-string, not counting padding in the case of a fixed-length string. The resultant-length argument is the address of an unsigned word into which STR$TRIM writes the length of the output string. If the input string is truncated to the size specified in the destination-string description, resultant-length is set to this size. Therefore, resultant-length can always be used by the calling program to access a valid substring of destination- string. 3 STR$UPCASE The Convert String to All Uppercase Characters routine converts a source string to uppercase. Format STR$UPCASE destination-string ,source-string 4 Returns OpenVMS usage:cond_value type: longword (unsigned) access: write only mechanism: by value 4 Arguments destination-string OpenVMS usage:char_string type: character string access: write only mechanism: by descriptor Destination string into which STR$UPCASE writes the string it has converted to uppercase. The destination-string argument is the address of a descriptor pointing to the destination string. source-string OpenVMS usage:char_string type: character string access: read only mechanism: by descriptor Source string that STR$UPCASE converts to uppercase. The source- string argument is the address of a descriptor pointing to the source string.

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