remove most external function calls (except io)

[compress.git] / code.c

#include "debug.h"

#include "code.h"

/* concatenate code */

int codcat (char *dst, size_t n, char *src)
{
    while ((*dst != 0) && (n > 0)) {
        n--;
        dst++;
    }
    
    return (n > 0) ? codcpy (dst, n, src) : -1;
}

/* compare 2 codes */

int codcmp (char *cod1, char *cod2)
{
    int i = -1;

    do {
        i++;
        if (cod1[i] != cod2[i]) {
            return (cod1[i] < cod2[i]) ? -1 : 1;
        }
    } while (cod1[i] != 0);

    return 0;
}

/* copy code */

int codcpy (char *dst, size_t n, char *src)
{
    size_t i;

    for (i = 0; i < n; i++) {
        dst[i] = src[i];
        if (src[i]== 0) {
            return i;
        }
    }
    VERBOSE (ERROR, printf ("Buffer too short\n"));

    return -1;
}

/* code length */

int codlen (char *code)
{
    int i = 0;

    while (code[i] != 0) {
        i++;
    }

    return i;
}

// vim: ts=4 sw=4 et