Return to string.3 CVS log

Up to [Research Unix] / researchv10dc / man / man3

Annotation of researchv10dc/man/man3/string.3, revision 1.1

1.1     ! root        1: .TH STRING 3
        !             2: .CT 2 data_man
        !             3: .SH NAME
        !             4: strcat, strncat, strcmp, strncmp, strcpy, strncpy, strlen,
        !             5: strchr, strrchr, strpbrk, strspn, strcspn, strtok, strdup \(mi string operations
        !             6: .SH SYNOPSIS
        !             7: .nf
        !             8: .2C
        !             9: .B #include <libc.h>
        !            10: .PP
        !            11: .B char *strcat(s1, s2)
        !            12: .B char *s1, *s2;
        !            13: .PP
        !            14: .B char *strncat(s1, s2, n)
        !            15: .B char *s1, *s2;
        !            16: .B int n;
        !            17: .PP
        !            18: .B int strcmp(s1, s2)
        !            19: .B char *s1, *s2;
        !            20: .PP
        !            21: .B int strncmp(s1, s2, n)
        !            22: .B char *s1, *s2;
        !            23: .B int n;
        !            24: .PP
        !            25: .B char *strcpy(s1, s2)
        !            26: .B char *s1, *s2;
        !            27: .PP
        !            28: .B char *strncpy(s1, s2, n)
        !            29: .B char *s1, *s2;
        !            30: .B int n;
        !            31: .PP
        !            32: .B int strlen(s)
        !            33: .B char *s;
        !            34: .PP
        !            35: .B char *strchr(s, c)
        !            36: .B char *s;
        !            37: .B int c;
        !            38: .PP
        !            39: .B char *strrchr(s, c)
        !            40: .B char *s;
        !            41: .B int c;
        !            42: .PP
        !            43: .B char *strpbrk(s1, s2)
        !            44: .B char *s1, *s2;
        !            45: .PP
        !            46: .B int strspn(s1, s2)
        !            47: .B char *s1, *s2;
        !            48: .PP
        !            49: .B int strcspn(s1, s2)
        !            50: .B char *s1, *s2;
        !            51: .PP
        !            52: .B char *strtok(s1, s2)
        !            53: .B char *s1, *s2;
        !            54: .PP
        !            55: .B char *strdup(s)
        !            56: .B char *s;
        !            57: .sp
        !            58: .1C
        !            59: .SH DESCRIPTION
        !            60: The arguments
        !            61: .I s1, s2
        !            62: and
        !            63: .I s
        !            64: point to null-terminated strings.
        !            65: The functions
        !            66: .IR strcat ,
        !            67: .IR strncat ,
        !            68: .IR strcpy ,
        !            69: and
        !            70: .I strncpy
        !            71: all alter
        !            72: .IR s1 .
        !            73: These functions do not check for overflow of
        !            74: the array pointed to by
        !            75: .IR s1 .
        !            76: .PP
        !            77: .I Strcat
        !            78: appends a copy of string
        !            79: .I s2
        !            80: to the end of string
        !            81: .IR s1 .
        !            82: .I Strncat
        !            83: appends at most
        !            84: .I n
        !            85: characters.
        !            86: Each returns a pointer to the null-terminated result.
        !            87: .PP
        !            88: .I Strcmp
        !            89: compares its arguments and returns an integer
        !            90: less than, equal to, or greater than 0,
        !            91: according as
        !            92: .I s1
        !            93: is lexicographically less than, equal to, or
        !            94: greater than
        !            95: .IR s2 .
        !            96: .I Strncmp
        !            97: makes the same comparison but looks at at most
        !            98: .I n
        !            99: characters.
        !           100: .PP
        !           101: .I Strcpy
        !           102: copies string
        !           103: .I s2
        !           104: to
        !           105: .IR s1 ,
        !           106: stopping after the null character has been copied.
        !           107: .I Strncpy
        !           108: copies exactly
        !           109: .I n
        !           110: characters,
        !           111: truncating
        !           112: .I s2
        !           113: or adding
        !           114: null characters to
        !           115: .I s1
        !           116: if necessary.
        !           117: The result will not be null-terminated if the length
        !           118: of
        !           119: .I s2
        !           120: is
        !           121: .I n
        !           122: or more.
        !           123: Each function returns
        !           124: .IR s1 .
        !           125: .PP
        !           126: .I Strlen
        !           127: returns the number of characters in
        !           128: .IR s ,
        !           129: not including the terminating null character.
        !           130: .PP
        !           131: .I Strchr
        !           132: .RI ( strrchr )
        !           133: returns a pointer to the first (last)
        !           134: occurrence of character
        !           135: .I c
        !           136: in string
        !           137: .IR s ,
        !           138: or
        !           139: .L (char *)0
        !           140: if
        !           141: .I c
        !           142: does not occur in the string.
        !           143: The null character terminating a string is considered to
        !           144: be part of the string.
        !           145: .PP
        !           146: .I Strpbrk
        !           147: returns a pointer to the first occurrence in string
        !           148: .I s1
        !           149: of any character from string
        !           150: .IR s2 ,
        !           151: .L (char *)0
        !           152: if no character from
        !           153: .I s2
        !           154: exists in
        !           155: .IR s1 .
        !           156: .PP
        !           157: .I Strspn
        !           158: .RI ( strcspn )
        !           159: returns the length of the initial segment of string
        !           160: .I s1
        !           161: which consists entirely of characters from (not from) string
        !           162: .IR s2 .
        !           163: .PP
        !           164: .I Strtok
        !           165: considers the string
        !           166: .I s1
        !           167: to consist of a sequence of zero or more text tokens separated
        !           168: by spans of one or more characters from the separator string
        !           169: .IR s2 .
        !           170: The first call, with pointer
        !           171: .I s1
        !           172: specified, returns a pointer to the first character of the first
        !           173: token, having replaced the character after the token by 0.
        !           174: Subsequent calls,
        !           175: signified by
        !           176: .I s1
        !           177: being
        !           178: .LR "(char *)0" ,
        !           179: will scan from where the preceding call left off.
        !           180: The separator string
        !           181: .I s2
        !           182: may be different from call to call.
        !           183: When no token remains in
        !           184: .IR s1 ,
        !           185: .L (char *)0
        !           186: is returned.
        !           187: .PP
        !           188: .I Strdup
        !           189: returns a pointer to a distinct copy of the null-terminated string
        !           190: .I s
        !           191: in space obtained from
        !           192: .IR malloc (3)
        !           193: or
        !           194: .L (char *)0
        !           195: if no space can be obtained.
        !           196: .SH SEE ALSO
        !           197: .IR memory (3)
        !           198: .SH BUGS
        !           199: .I Strcmp
        !           200: and
        !           201: .I strncmp
        !           202: use native character comparison, which may
        !           203: be signed or unsigned.
        !           204: .br
        !           205: The outcome of overlapping moves varies among implementations.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.