| #include <stdio.h> |
| |
| static int assert_fail(const char* s, unsigned l) |
| { |
| fprintf(stderr, "assertion failed in line %u: '%s'\n", l, s); |
| return 0; |
| } |
| #define ASSERT(expr) ((expr) ? 1 : assert_fail(#expr,__LINE__)) |
| |
| int test(int r) { |
| #if !defined(__i386__) && !defined(__x86_64__) |
| #if !defined(BYTE_ORDER) || !defined(LITTLE_ENDIAN) |
| return r; |
| #else |
| if (BYTE_ORDER != LITTLE_ENDIAN) return r; |
| #endif |
| #endif |
| |
| /* little endian */ |
| union { long l; unsigned char c[sizeof(long)]; } u; |
| u.l = 0; u.c[0] = 0x80; |
| r &= ASSERT(u.l == 128); |
| u.l = 0; u.c[sizeof(long)-1] = 0x80; |
| r &= ASSERT(u.l < 0); |
| return r; |
| } |
| |
| int main() { |
| return test(1) != 1; |
| } |
| |
