1// RUN: %clang_cc1 %s -triple=i686-apple-darwin9 -verify -DVERIFY 2// RUN: %clang_cc1 %s -E -triple=i686-apple-darwin9 3#ifndef __has_feature 4#error Should have __has_feature 5#endif 6 7 8#if __has_feature(something_we_dont_have) 9#error Bad 10#endif 11 12#if !__has_builtin(__builtin_huge_val) || \ 13 !__has_builtin(__builtin_shufflevector) || \ 14 !__has_builtin(__builtin_convertvector) || \ 15 !__has_builtin(__builtin_trap) || \ 16 !__has_builtin(__c11_atomic_init) || \ 17 !__has_feature(attribute_analyzer_noreturn) || \ 18 !__has_feature(attribute_overloadable) 19#error Clang should have these 20#endif 21 22#if __has_builtin(__builtin_insanity) 23#error Clang should not have this 24#endif 25 26#if !__has_feature(__attribute_deprecated_with_message__) 27#error Feature name in double underscores does not work 28#endif 29 30// Make sure we have x86 builtins only (forced with target triple). 31 32#if !__has_builtin(__builtin_ia32_emms) || \ 33 __has_builtin(__builtin_altivec_abs_v4sf) 34#error Broken handling of target-specific builtins 35#endif 36 37// Macro expansion does not occur in the parameter to __has_builtin, 38// __has_feature, etc. (as is also expected behaviour for ordinary 39// macros), so the following should not expand: 40 41#define MY_ALIAS_BUILTIN __c11_atomic_init 42#define MY_ALIAS_FEATURE attribute_overloadable 43 44#if __has_builtin(MY_ALIAS_BUILTIN) || __has_feature(MY_ALIAS_FEATURE) 45#error Alias expansion not allowed 46#endif 47 48// But deferring should expand: 49 50#define HAS_BUILTIN(X) __has_builtin(X) 51#define HAS_FEATURE(X) __has_feature(X) 52 53#if !HAS_BUILTIN(MY_ALIAS_BUILTIN) || !HAS_FEATURE(MY_ALIAS_FEATURE) 54#error Expansion should have occurred 55#endif 56 57#ifdef VERIFY 58// expected-error@+1 {{builtin feature check macro requires a parenthesized identifier}} 59#if __has_feature('x') 60#endif 61 62// The following are not identifiers: 63_Static_assert(!__is_identifier("string"), "oops"); 64_Static_assert(!__is_identifier('c'), "oops"); 65_Static_assert(!__is_identifier(123), "oops"); 66_Static_assert(!__is_identifier(int), "oops"); 67 68// The following are: 69_Static_assert(__is_identifier(abc /* comment */), "oops"); 70_Static_assert(__is_identifier /* comment */ (xyz), "oops"); 71 72// expected-error@+1 {{too few arguments}} 73#if __is_identifier() 74#endif 75 76// expected-error@+1 {{too many arguments}} 77#if __is_identifier(,()) 78#endif 79 80// expected-error@+1 {{missing ')' after 'abc'}} 81#if __is_identifier(abc xyz) // expected-note {{to match this '('}} 82#endif 83 84// expected-error@+1 {{missing ')' after 'abc'}} 85#if __is_identifier(abc()) // expected-note {{to match this '('}} 86#endif 87 88// expected-error@+1 {{missing ')' after '.'}} 89#if __is_identifier(.abc) // expected-note {{to match this '('}} 90#endif 91 92// expected-error@+1 {{nested parentheses not permitted in '__is_identifier'}} 93#if __is_identifier((abc)) 94#endif 95 96// expected-error@+1 {{missing '(' after '__is_identifier'}} expected-error@+1 {{expected value}} 97#if __is_identifier 98#endif 99 100// expected-error@+1 {{unterminated}} expected-error@+1 {{expected value}} 101#if __is_identifier( 102#endif 103 104#endif 105