1 // RUN: rm -rf %t 2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c11 %s 3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c11 -fmodules -fmodules-cache-path=%t %s -D__STDC_WANT_LIB_EXT1__=1 4 // RUN: %clang_cc1 -fsyntax-only -verify -std=c11 -ffreestanding %s 5 // RUN: %clang_cc1 -fsyntax-only -verify -std=c11 -triple i686-pc-win32 -fms-compatibility-version=17.00 %s 6 7 noreturn int f(); // expected-error 1+{{}} 8 9 #include <stdnoreturn.h> 10 #include <stdnoreturn.h> 11 #include <stdnoreturn.h> 12 13 int g(); 14 noreturn int g(); 15 int noreturn g(); 16 int g(); 17 18 #include <stdalign.h> 19 _Static_assert(__alignas_is_defined, ""); 20 _Static_assert(__alignof_is_defined, ""); 21 alignas(alignof(int)) char c[4]; 22 _Static_assert(__alignof(c) == 4, ""); 23 24 #define __STDC_WANT_LIB_EXT1__ 1 25 #include <stddef.h> 26 rsize_t x = 0; 27 _Static_assert(sizeof(max_align_t) >= sizeof(long long), ""); 28 _Static_assert(alignof(max_align_t) >= alignof(long long), ""); 29 _Static_assert(sizeof(max_align_t) >= sizeof(long double), ""); 30 _Static_assert(alignof(max_align_t) >= alignof(long double), ""); 31 32 #ifdef _MSC_VER 33 _Static_assert(sizeof(max_align_t) == sizeof(double), ""); 34 #endif 35 36 // If we are freestanding, then also check RSIZE_MAX (in a hosted implementation 37 // we will use the host stdint.h, which may not yet have C11 support). 38 #ifndef __STDC_HOSTED__ 39 #include <stdint.h> 40 rsize_t x2 = RSIZE_MAX; 41 #endif 42 43