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Top Forums Programming decimal to binary function error Post 302152678 by return_user on Thursday 20th of December 2007 09:09:24 PM
Old 12-20-2007
decimal to binary function error

I have the following simple code to return a binary number in a array format given an interger and the number of the bits for specifying the interger as binary number.

#include <stdio.h>
#include <stdlib.h>

int main ()

{
// int* get_binary_number(int* bit_array, int num, int bit_count);
int* bitcount ( int n, int bit_count) ;
int* bit_array;
int i;

// bit_array = get_binary_number(bit_array, 23, 6);
bit_array = bitcount(23, 6);
printf("\nUsage: \n");
printf("\n the number '23' in binary is ");

for (i=0; i<6; i++)
{
printf("%d", bit_array[i]);
}


return 0;
}

int* bitcount ( int n, int bit_count)
{
int count[bit_count];
int bit_place = bit_count - 1;
while (n)
{
count[bit_place] = n && 1 ;
n >>= 1 ;
bit_place--;
}
return count ;
}

this program does compile with a warning

gcc -c -Wall -c -o test.o test.c
test.c: In function ‘bitcount':
test.c:36: warning: function returns address of local variable
gcc test.o -o test


But when I try to run it, there is no result.
Any help to fix this is greatly appreciated.

Thank you,
 

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REALPATH_CACHE_GET(3)							 1						     REALPATH_CACHE_GET(3)

realpath_cache_get - Get realpath cache entries

SYNOPSIS
array realpath_cache_get (void ) DESCRIPTION
Get the contents of the realpath cache. RETURN VALUES
Returns an array of realpath cache entries. The keys are original path entries, and the values are arrays of data items, containing the resolved path, expiration date, and other options kept in the cache. EXAMPLES
Example #1 realpath_cache_get(3) example <?php var_dump(realpath_cache_get()); ?> The above example will output something similar to: array(2) { ["/test"]=> array(4) { ["key"]=> int(123456789) ["is_dir"]=> bool(true) ["realpath"]=> string(5) "/test" ["expires"]=> int(1260318939) } ["/test/test.php"]=> array(4) { ["key"]=> int(987654321) ["is_dir"]=> bool(false) ["realpath"]=> string(12) "/root/test.php" ["expires"]=> int(1260318939) } } SEE ALSO
realpath_cache_size(3). PHP Documentation Group REALPATH_CACHE_GET(3)
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