| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c11 -x c -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c2x -x c -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++17 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++17 -fsyntax-only -fchar8_t -verify %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++20 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++20 -fsyntax-only -fno-char8_t -verify %s |
| |
| int array0[u'ñ' == u'\xf1'? 1 : -1]; |
| int array1['\xF1' != u'\xf1'? 1 : -1]; |
| int array1['ñ' != u'\xf1'? 1 : -1]; // expected-error {{character too large for enclosing character literal type}} |
| #if __cplusplus > 201402L |
| char a = u8'ñ'; // expected-error {{character too large for enclosing character literal type}} |
| char b = u8'\x80'; // ok |
| char c = u8'\u0080'; // expected-error {{character too large for enclosing character literal type}} |
| char d = u8'\u1234'; // expected-error {{character too large for enclosing character literal type}} |
| char e = u8'ሴ'; // expected-error {{character too large for enclosing character literal type}} |
| char f = u8'ab'; // expected-error {{Unicode character literals may not contain multiple characters}} |
| #elif __STDC_VERSION__ >= 202311L |
| char a = u8'ñ'; // expected-error {{character too large for enclosing character literal type}} |
| char b = u8'\x80'; // ok |
| char c = u8'\u0000'; // ok |
| char d = u8'\u1234'; // expected-error {{character too large for enclosing character literal type}} |
| char e = u8'ሴ'; // expected-error {{character too large for enclosing character literal type}} |
| char f = u8'ab'; // expected-error {{Unicode character literals may not contain multiple characters}} |
| _Static_assert( |
| _Generic(u8'a', |
| default : 0, |
| unsigned char : 1), |
| "Surprise!"); |
| #endif |
| |
| |
| // UTF-8 character literals are enabled in C++17 and later. If `-fchar8_t` is not enabled |
| // (as is the case in C++17), then UTF-8 character literals may produce signed or |
| // unsigned values depending on whether char is a signed type. If `-fchar8_t` is enabled |
| // (which is the default behavior for C++20), then UTF-8 character literals always |
| // produce unsigned values. The tests below depend on the target having a signed |
| // 8-bit char so that '\xff' produces a negative value. |
| #if __cplusplus >= 201703L |
| # if !defined(__cpp_char8_t) |
| # if !(u8'\xff' == '\xff') |
| # error UTF-8 character value did not match ordinary character literal; this is unexpected |
| # endif |
| # else |
| # if u8'\xff' == '\xff' // expected-warning {{right side of operator converted from negative value to unsigned}} |
| # error UTF-8 character value matched ordinary character literal; this is unexpected |
| # endif |
| # endif |
| #endif |
| |
| /// In C23, u8 char literals are always unsigned. |
| #if __STDC_VERSION__ >= 202311L |
| # if u8'\xff' == '\xff'// expected-warning {{right side of operator converted from negative value to unsigned}} |
| # error u8 char literal is not unsigned |
| # endif |
| #endif |