diff options
Diffstat (limited to 'tests/test-stddef.c')
| -rw-r--r-- | tests/test-stddef.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/tests/test-stddef.c b/tests/test-stddef.c index d047e57..aa6ae54 100644 --- a/tests/test-stddef.c +++ b/tests/test-stddef.c @@ -1,5 +1,5 @@ /* Test of <stddef.h> substitute. - Copyright (C) 2009, 2010 Free Software Foundation, Inc. + Copyright (C) 2009-2015 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -19,18 +19,53 @@ #include <config.h> #include <stddef.h> - +#include <stdalign.h> #include "verify.h" /* Check that appropriate types are defined. */ wchar_t a = 'c'; ptrdiff_t b = 1; size_t c = 2; +max_align_t x; /* Check that NULL can be passed through varargs as a pointer type, per POSIX 2008. */ verify (sizeof NULL == sizeof (void *)); +/* Check that offsetof produces integer constants with correct type. */ +struct d +{ + char e; + char f; +}; +/* Solaris 10 has a bug where offsetof is under-parenthesized, and + cannot be used as an arbitrary expression. However, since it is + unlikely to bite real code, we ignore that short-coming. */ +/* verify (sizeof offsetof (struct d, e) == sizeof (size_t)); */ +verify (sizeof (offsetof (struct d, e)) == sizeof (size_t)); +verify (offsetof (struct d, e) < -1); /* Must be unsigned. */ +verify (offsetof (struct d, f) == 1); + +/* Check max_align_t's alignment. */ +verify (alignof (double) <= alignof (max_align_t)); +verify (alignof (int) <= alignof (max_align_t)); +verify (alignof (long double) <= alignof (max_align_t)); +verify (alignof (long int) <= alignof (max_align_t)); +verify (alignof (ptrdiff_t) <= alignof (max_align_t)); +verify (alignof (size_t) <= alignof (max_align_t)); +verify (alignof (wchar_t) <= alignof (max_align_t)); +verify (alignof (struct d) <= alignof (max_align_t)); +#if defined __GNUC__ || defined __IBM__ALIGNOF__ +verify (__alignof__ (double) <= __alignof__ (max_align_t)); +verify (__alignof__ (int) <= __alignof__ (max_align_t)); +verify (__alignof__ (long double) <= __alignof__ (max_align_t)); +verify (__alignof__ (long int) <= __alignof__ (max_align_t)); +verify (__alignof__ (ptrdiff_t) <= __alignof__ (max_align_t)); +verify (__alignof__ (size_t) <= __alignof__ (max_align_t)); +verify (__alignof__ (wchar_t) <= __alignof__ (max_align_t)); +verify (__alignof__ (struct d) <= __alignof__ (max_align_t)); +#endif + int main (void) { |