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Annotation of researchv9/libc/gen/memory.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Memory operations as defined in the 8th edition manual
        !             3:  * D .A. Kapilow               12/17/86
        !             4:  */
        !             5: 
        !             6: char *memccpy(s1, s2, c, n)
        !             7: register char *s1, *s2;
        !             8: register int c, n;
        !             9: {
        !            10:        register char cc = c;
        !            11: 
        !            12:        for (; n--; s1++, s2++)
        !            13:                if (cc == (*s1 = *s2))
        !            14:                        return ++s1;
        !            15:        return (char *)0;
        !            16: }
        !            17: 
        !            18: char *memchr(s, c, n)
        !            19: register char *s;
        !            20: register c, n;
        !            21: {
        !            22:        register char cc = c;
        !            23: 
        !            24:        for (; n--; s++)
        !            25:                if (*s == cc)
        !            26:                        return s;
        !            27:        return (char *)0;               
        !            28: }
        !            29: 
        !            30: int memcmp(s1, s2, n)
        !            31: register char *s1, *s2;
        !            32: register int n;
        !            33: {
        !            34:        for (; n--; s1++, s2++)
        !            35:                if (*s1 != *s2)
        !            36:                        return (*s1 - *s2);
        !            37:        return 0;
        !            38: }
        !            39: 
        !            40: char *memcpy(s1, s2, n)
        !            41: register char *s1, *s2;
        !            42: register int n;
        !            43: {
        !            44:        char *r = s1;
        !            45: 
        !            46:        while(n--)
        !            47:                *s1++ = *s2++;
        !            48:        return r;
        !            49: }
        !            50: 
        !            51: char *memset(s, c, n)
        !            52: register char *s;
        !            53: register int c, n;
        !            54: {
        !            55:        char *r = s;
        !            56: 
        !            57:        while (n--)
        !            58:                *s++ = c;
        !            59:        return r;
        !            60: }

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