| 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_builtin(__builtin_launder) || \ |
|---|
| 18 | !__has_feature(attribute_analyzer_noreturn) || \ |
|---|
| 19 | !__has_feature(attribute_overloadable) |
|---|
| 20 | #error Clang should have these |
|---|
| 21 | #endif |
|---|
| 22 | |
|---|
| 23 | #if __has_builtin(__builtin_insanity) |
|---|
| 24 | #error Clang should not have this |
|---|
| 25 | #endif |
|---|
| 26 | |
|---|
| 27 | #if !__has_feature(__attribute_deprecated_with_message__) |
|---|
| 28 | #error Feature name in double underscores does not work |
|---|
| 29 | #endif |
|---|
| 30 | |
|---|
| 31 | // Make sure we have x86 builtins only (forced with target triple). |
|---|
| 32 | |
|---|
| 33 | #if !__has_builtin(__builtin_ia32_emms) || \ |
|---|
| 34 | __has_builtin(__builtin_altivec_abs_v4sf) |
|---|
| 35 | #error Broken handling of target-specific builtins |
|---|
| 36 | #endif |
|---|
| 37 | |
|---|
| 38 | // Macro expansion does not occur in the parameter to __has_builtin, |
|---|
| 39 | // __has_feature, etc. (as is also expected behaviour for ordinary |
|---|
| 40 | // macros), so the following should not expand: |
|---|
| 41 | |
|---|
| 42 | #define MY_ALIAS_BUILTIN __c11_atomic_init |
|---|
| 43 | #define MY_ALIAS_FEATURE attribute_overloadable |
|---|
| 44 | |
|---|
| 45 | #if __has_builtin(MY_ALIAS_BUILTIN) || __has_feature(MY_ALIAS_FEATURE) |
|---|
| 46 | #error Alias expansion not allowed |
|---|
| 47 | #endif |
|---|
| 48 | |
|---|
| 49 | // But deferring should expand: |
|---|
| 50 | |
|---|
| 51 | #define HAS_BUILTIN(X) __has_builtin(X) |
|---|
| 52 | #define HAS_FEATURE(X) __has_feature(X) |
|---|
| 53 | |
|---|
| 54 | #if !HAS_BUILTIN(MY_ALIAS_BUILTIN) || !HAS_FEATURE(MY_ALIAS_FEATURE) |
|---|
| 55 | #error Expansion should have occurred |
|---|
| 56 | #endif |
|---|
| 57 | |
|---|
| 58 | #ifdef VERIFY |
|---|
| 59 | // expected-error@+1 {{builtin feature check macro requires a parenthesized identifier}} |
|---|
| 60 | #if __has_feature('x') |
|---|
| 61 | #endif |
|---|
| 62 | |
|---|
| 63 | // The following are not identifiers: |
|---|
| 64 | _Static_assert(!__is_identifier("string"), "oops"); |
|---|
| 65 | _Static_assert(!__is_identifier('c'), "oops"); |
|---|
| 66 | _Static_assert(!__is_identifier(123), "oops"); |
|---|
| 67 | _Static_assert(!__is_identifier(int), "oops"); |
|---|
| 68 | |
|---|
| 69 | // The following are: |
|---|
| 70 | _Static_assert(__is_identifier(abc /* comment */), "oops"); |
|---|
| 71 | _Static_assert(__is_identifier /* comment */ (xyz), "oops"); |
|---|
| 72 | |
|---|
| 73 | // expected-error@+1 {{too few arguments}} |
|---|
| 74 | #if __is_identifier() |
|---|
| 75 | #endif |
|---|
| 76 | |
|---|
| 77 | // expected-error@+1 {{too many arguments}} |
|---|
| 78 | #if __is_identifier(,()) |
|---|
| 79 | #endif |
|---|
| 80 | |
|---|
| 81 | // expected-error@+1 {{missing ')' after 'abc'}} |
|---|
| 82 | #if __is_identifier(abc xyz) // expected-note {{to match this '('}} |
|---|
| 83 | #endif |
|---|
| 84 | |
|---|
| 85 | // expected-error@+1 {{missing ')' after 'abc'}} |
|---|
| 86 | #if __is_identifier(abc()) // expected-note {{to match this '('}} |
|---|
| 87 | #endif |
|---|
| 88 | |
|---|
| 89 | // expected-error@+1 {{missing ')' after '.'}} |
|---|
| 90 | #if __is_identifier(.abc) // expected-note {{to match this '('}} |
|---|
| 91 | #endif |
|---|
| 92 | |
|---|
| 93 | // expected-error@+1 {{nested parentheses not permitted in '__is_identifier'}} |
|---|
| 94 | #if __is_identifier((abc)) |
|---|
| 95 | #endif |
|---|
| 96 | |
|---|
| 97 | // expected-error@+1 {{missing '(' after '__is_identifier'}} expected-error@+1 {{expected value}} |
|---|
| 98 | #if __is_identifier |
|---|
| 99 | #endif |
|---|
| 100 | |
|---|
| 101 | // expected-error@+1 {{unterminated}} expected-error@+1 {{expected value}} |
|---|
| 102 | #if __is_identifier( |
|---|
| 103 | #endif |
|---|
| 104 | |
|---|
| 105 | #endif |
|---|
| 106 | |
|---|