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Annotation of 42BSD/lib/libc/gen/calloc.c, revision 1.1

1.1     ! root        1: /* @(#)calloc.c        4.1 (Berkeley) 12/21/80 */
        !             2: /*     calloc - allocate and clear memory block
        !             3: */
        !             4: #define CHARPERINT (sizeof(int)/sizeof(char))
        !             5: #define NULL 0
        !             6: 
        !             7: char *
        !             8: calloc(num, size)
        !             9: unsigned num, size;
        !            10: {
        !            11:        register char *mp;
        !            12:        char *malloc();
        !            13:        register int *q;
        !            14:        register m;
        !            15: 
        !            16:        num *= size;
        !            17:        mp = malloc(num);
        !            18:        if(mp == NULL)
        !            19:                return(NULL);
        !            20:        q = (int *) mp;
        !            21:        m = (num+CHARPERINT-1)/CHARPERINT;
        !            22:        while(--m>=0)
        !            23:                *q++ = 0;
        !            24:        return(mp);
        !            25: }
        !            26: 
        !            27: cfree(p, num, size)
        !            28: char *p;
        !            29: unsigned num, size;
        !            30: {
        !            31:        free(p);
        !            32: }

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