1 // RUN: %clang_cc1 %s -fsyntax-only -std=c99 -verify 2 // RUN: %clang_cc1 %s -fsyntax-only -std=c11 -Wc99-compat -verify 3 // RUN: %clang_cc1 %s -fsyntax-only -x c++ -std=c++03 -Wc++11-compat -verify 4 // RUN: %clang_cc1 %s -fsyntax-only -x c++ -std=c++11 -Wc++98-compat -verify 5 6 // Note: This file contains Unicode characters; please do not remove them! 7 8 // Identifier characters 9 extern char aǶ; // C11, C++11 10 extern char aª; // C99, C11, C++11 11 extern char a΄; // C++03, C11, C++11 12 extern char a๐; // C99, C++03, C11, C++11 13 extern char a﹅; // none 14 extern char x̀; // C11, C++11. Note that this does not have a composed form. 15 16 17 18 19 // Identifier initial characters 20 extern char ๐; // C++03, C11, C++11 21 extern char ̀; // disallowed initially in C11/C++, always in C99 22 23 24 25 26 #if __cplusplus 27 // expected-error@11 {{not allowed in an identifier}} 28 // expected-error@13 {{not allowed in an identifier}} 29 // expected-error@20 {{character <U+0E50> not allowed at the start of an identifier}} 30 // expected-error@21 {{character <U+0300> not allowed at the start of an identifier}} 31 // expected-warning@20 {{declaration does not declare anything}} 32 // expected-warning@21 {{declaration does not declare anything}} 33 34 #else 35 # if __STDC_VERSION__ >= 201112L 36 // C11 37 // expected-warning@9 {{using this character in an identifier is incompatible with C99}} 38 // expected-warning@11 {{using this character in an identifier is incompatible with C99}} 39 // expected-error@13 {{not allowed in an identifier}} 40 // expected-warning@14 {{using this character in an identifier is incompatible with C99}} 41 // expected-warning@20 {{starting an identifier with this character is incompatible with C99}} 42 // expected-warning@21 {{declaration does not declare anything}} 43 // expected-error@21 {{not allowed at the start of an identifier}} 44 45 # else 46 // C99 47 // expected-error@9 {{not allowed in an identifier}} 48 // expected-error@11 {{not allowed in an identifier}} 49 // expected-error@13 {{not allowed in an identifier}} 50 // expected-error@14 {{not allowed in an identifier}} 51 // expected-error@20 {{character <U+0E50> not allowed at the start of an identifier}} 52 // expected-error@21 {{unexpected character <U+0300>}} 53 // expected-warning@20 {{declaration does not declare anything}} 54 // expected-warning@21 {{declaration does not declare anything}} 55 56 57 # endif 58 #endif 59