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Annotation of researchv10dc/man/adm/man3/memory.3, revision 1.1

1.1     ! root        1: .TH MEMORY 3
        !             2: .CT 2 mem_man
        !             3: .SH NAME
        !             4: memccpy, memchr, memcmp, memcpy, memmove, memset \(mi memory operations
        !             5: .SH SYNOPSIS
        !             6: .nf
        !             7: .B char *memccpy(s1, s2, c, n)
        !             8: .B char *s1, *s2;
        !             9: .B int c, n;
        !            10: .PP
        !            11: .B char *memchr(s, c, n)
        !            12: .B char *s;
        !            13: .B int c, n;
        !            14: .PP
        !            15: .B int memcmp(s1, s2, n)
        !            16: .B char *s1, *s2;
        !            17: .B int n;
        !            18: .PP
        !            19: .B char *memcpy(s1, s2, n)
        !            20: .B char *s1, *s2;
        !            21: .B int n;
        !            22: .PP
        !            23: .B char *memmove(s1, s2, n)
        !            24: .B char *s1, *s2;
        !            25: .B int n;
        !            26: .PP
        !            27: .B char *memset(s, c, n)
        !            28: .B char *s;
        !            29: .B int c, n;
        !            30: .fi
        !            31: .SH DESCRIPTION
        !            32: These functions operate efficiently on memory areas
        !            33: (arrays of characters bounded by a count, not terminated by a null character).
        !            34: They do not check for the overflow of any receiving memory area.
        !            35: .PP
        !            36: .I Memccpy
        !            37: copies characters from memory area
        !            38: .I s2
        !            39: into
        !            40: .IR s1 ,
        !            41: stopping after the first occurrence of character
        !            42: .I c
        !            43: has been copied, or after
        !            44: .I n
        !            45: characters have been copied, whichever comes first.
        !            46: It returns a pointer to the character after
        !            47: the copy of
        !            48: .I c
        !            49: in
        !            50: .IR s1 ,
        !            51: or zero if
        !            52: .I c
        !            53: was not found in the first
        !            54: .I n
        !            55: characters of
        !            56: .IR s2 .
        !            57: .PP
        !            58: .PP
        !            59: .I Memchr
        !            60: returns a pointer to the first
        !            61: occurrence of character
        !            62: .I c
        !            63: in the first
        !            64: .I n
        !            65: characters of memory area
        !            66: .IR s,
        !            67: or zero if
        !            68: .I c
        !            69: does not occur.
        !            70: .PP
        !            71: .I Memcmp
        !            72: compares its arguments, looking at the first
        !            73: .I n
        !            74: characters only, and returns an integer
        !            75: less than, equal to, or greater than 0,
        !            76: according as
        !            77: .I s1
        !            78: is lexicographically less than, equal to, or
        !            79: greater than
        !            80: .IR s2 .
        !            81: .PP
        !            82: .I Memcpy
        !            83: copies
        !            84: .I n
        !            85: characters from memory area 
        !            86: .I s2
        !            87: to
        !            88: .I s1.
        !            89: It returns
        !            90: .I s1.
        !            91: .PP
        !            92: .I Memmove
        !            93: is the same as 
        !            94: .I memcpy,
        !            95: except it is guaranteed to handle overlapping strings as
        !            96: if the move had been made to a temporary and then to the destination.
        !            97: .PP
        !            98: .I Memset
        !            99: sets the first
        !           100: .I n
        !           101: characters in memory area
        !           102: .I s
        !           103: to the value of character
        !           104: .IR c .
        !           105: It returns
        !           106: .IR s .
        !           107: .SH SEE ALSO
        !           108: .IR string (3)
        !           109: .SH BUGS
        !           110: .I Memcmp
        !           111: uses native character comparison, which is signed
        !           112: on some machines, unsigned on others;
        !           113: thus the sign of the value returned when a
        !           114: character has its high-order bit set is implementation-dependent.
        !           115: .br
        !           116: Thanks to ANSI X3J11 for the 
        !           117: .IR memcpy/memmove
        !           118: distinction.

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