Small test program to test #pragma pack(...) support

pack.c

#include <stdio.h>
#pragma pack(push)
#pragma pack(1)
struct {
    char a;
    int b;
    char c;
} packed;
#pragma pack(pop)

struct {
    char a;
    int b;
    char c;
} unpacked;

int main(int argc, char** argv)
{
    printf("sizeof(packed) = %lu, sizeof(unpacked) = %lu\n",
            sizeof(packed), sizeof(unpacked));
    return 0;
}