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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