#include <unistd.h>
#include <stdint.h>
void memdump(void *p, size_t nmemb, size_t size)
{
size_t total_bits = nmemb * size * 8;
unsigned char *ptr = (unsigned char *)p;
for (size_t i = 0; i < total_bits; i++) {
unsigned char bit = (ptr[i / 8] >> (7 - (i % 8))) & 0x01;
char c = bit ? '1' : '0';
write(STDOUT_FILENO, &c, sizeof(char));
if ((i + 1) % 8 == 0)
write(STDOUT_FILENO, " ", 1);
}
write(STDOUT_FILENO, "\n", sizeof(char));
}
int main(void)
{
int i = 0;
int j[2] = {1, 0};
char c = 'a';
char *s = "za";
uint64_t size = 213213;
memdump(&i, 1, sizeof(int));
memdump(j, 2, sizeof(int));
memdump(&c, 1, sizeof(char));
memdump(s, 2, sizeof(char));
memdump(&size, 1, sizeof(size_t));
return 0;
}
