版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/k_y_z_s/article/details/79364301
/* ============ printbit.c =========== */
#include <stdio.h>
#include <stdlib.h>
void printbit(unsigned int num)
{
unsigned int i = 1;
unsigned int tmp = 1;
tmp <<= sizeof(int) * 8 - 1;
for(;i <= sizeof(int) * 8;i++){
putchar((num & tmp) ? '1' : '0');
if(i % 4 == 0) putchar(' ');
tmp >>= 1;
}
putchar('\n');
}
int main(int argc,char **argv)
{
if(argc != 2){
fprintf(stderr,"Usage: %s <num>\n",*argv);
return EXIT_FAILURE;
}
printbit(atoi(*(argv + 1)));
printbit(~(atoi(*(argv + 1))));
}