diff options
Diffstat (limited to 'gdb/testsuite/gdb.base/sizeof.c')
-rw-r--r-- | gdb/testsuite/gdb.base/sizeof.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.base/sizeof.c b/gdb/testsuite/gdb.base/sizeof.c index 51f8c2f5e2a..95d379ee9ae 100644 --- a/gdb/testsuite/gdb.base/sizeof.c +++ b/gdb/testsuite/gdb.base/sizeof.c @@ -1,8 +1,105 @@ #include <stdio.h> +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 () { + fill_structs (); + printf ("sizeof (char) == %d\n", sizeof (char)); printf ("sizeof (short) == %d\n", sizeof (short)); printf ("sizeof (int) == %d\n", sizeof (int)); @@ -15,5 +112,11 @@ main () printf ("sizeof (float) == %d\n", sizeof (float)); printf ("sizeof (double) == %d\n", sizeof (double)); printf ("sizeof (long double) == %d\n", sizeof (long double)); + + /* Signed char? */ + 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; } |