getbits.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Fri, 19 Nov 2010 16:32:43 +0100
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parent 141 0b5befeb361e
permissions -rw-r--r--
removed unneeded includes and code cleanups committer: Markus Bröker <mbroeker@largo.homelinux.org>
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/**
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 * getbits.c
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 * Copyright (C) 2010 Markus Broeker
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define BITS 8
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char *getbits (unsigned int what)
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{
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    static char byte[BITS + 1];
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    short i = BITS;
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    memset (byte, '0', BITS);
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    while (what > 0) {
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        byte[--i] = (what % 2) ? '1' : '0';
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        what >>= 1;
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    }
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    byte[BITS] = '\0';
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    return byte;
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}
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int main (void)
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{
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    unsigned int i;
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    char *s = strdup (getbits (0));
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    for (i = 240; i < 255; i++)
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        printf ("%s %s %s %s (%d)\n", s, s, s, getbits (i), i);
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    free (s);
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    return 0;
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}