#include #include "../lib/unbuffer_output.c" typedef char padding[16]; struct { padding p1; char v; padding p2; } padding_char; struct { padding p1; short v; padding p2; } padding_short; struct { padding p1; int v; padding p2; } padding_int; struct { padding p1; long v; padding p2; } padding_long; struct { padding p1; long long v; padding p2; } padding_long_long; struct { padding p1; float v; padding p2; } padding_float; struct { padding p1; double v; padding p2; } padding_double; struct { padding p1; long double v; padding p2; } padding_long_double; static void fill (void *buf, long sizeof_buf) { char *p = buf; int i; for (i = 0; i < sizeof_buf; i++) p[i] = "The quick brown dingo jumped over the layzy dog."[i]; } void fill_structs (void) { fill (&padding_char.p1, sizeof (padding)); fill (&padding_char.v, sizeof (padding_char.v)); fill (&padding_char.p2, sizeof (padding)); fill (&padding_short.p1, sizeof (padding)); fill (&padding_short.v, sizeof (padding_short.v)); fill (&padding_short.p2, sizeof (padding)); fill (&padding_int.p1, sizeof (padding)); fill (&padding_int.v, sizeof (padding_int.v)); fill (&padding_int.p2, sizeof (padding)); fill (&padding_long.p1, sizeof (padding)); fill (&padding_long.v, sizeof (padding_long.v)); fill (&padding_long.p2, sizeof (padding)); fill (&padding_long_long.p1, sizeof (padding)); fill (&padding_long_long.v, sizeof (padding_long_long.v)); fill (&padding_long_long.p2, sizeof (padding)); fill (&padding_float.p1, sizeof (padding)); fill (&padding_float.v, sizeof (padding_float.v)); fill (&padding_float.p2, sizeof (padding)); fill (&padding_double.p1, sizeof (padding)); fill (&padding_double.v, sizeof (padding_double.v)); fill (&padding_double.p2, sizeof (padding)); fill (&padding_long_double.p1, sizeof (padding)); fill (&padding_long_double.v, sizeof (padding_long_double.v)); fill (&padding_long_double.p2, sizeof (padding)); } int main () { gdb_unbuffer_output (); fill_structs (); printf ("sizeof (char) == %d\n", (int) sizeof (char)); printf ("sizeof (short) == %d\n", (int) sizeof (short)); printf ("sizeof (int) == %d\n", (int) sizeof (int)); printf ("sizeof (long) == %d\n", (int) sizeof (long)); printf ("sizeof (long long) == %d\n", (int) sizeof (long long)); printf ("sizeof (void *) == %d\n", (int) sizeof (void*)); printf ("sizeof (void (*)(void)) == %d\n", (int) sizeof (void (*)(void))); printf ("sizeof (float) == %d\n", (int) sizeof (float)); printf ("sizeof (double) == %d\n", (int) sizeof (double)); printf ("sizeof (long double) == %d\n", (int) sizeof (long double)); /* Signed char? */ printf ("valueof ('\\377') == %d\n", '\377'); printf ("valueof ((int) (char) -1) == %d\n", (int) (char) -1); printf ("valueof ((int) (signed char) -1) == %d\n", (int) (signed char) -1); printf ("valueof ((int) (unsigned char) -1) == %d\n", (int) (unsigned char) -1); return 0; }