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 a; // C11, C++11 10 extern char a; // C99, C11, C++11 11 extern char a; // C++03, C11, C++11 12 extern char a; // C99, C++03, C11, C++11 13 extern char a; // none 14 extern char x; // C11, C++11. Note that this does not have a composed form. 15 16 17 18 19 // Identifier initial characters 20 extern char ; // C++03, C11, C++11 21 extern char ; // disallowed initially in C11/C++11, always in C99/C++03 22 23 24 25 26 27 28 29 30 #if __cplusplus 31 # if __cplusplus >= 201103L 32 // C++11 33 // expected-warning@9 {{using this character in an identifier is incompatible with C++98}} 34 // expected-warning@10 {{using this character in an identifier is incompatible with C++98}} 35 // expected-error@13 {{non-ASCII characters are not allowed outside of literals and identifiers}} 36 // expected-warning@14 {{using this character in an identifier is incompatible with C++98}} 37 // expected-error@21 {{expected unqualified-id}} 38 39 # else 40 // C++03 41 // expected-error@9 {{non-ASCII characters are not allowed outside of literals and identifiers}} 42 // expected-error@10 {{non-ASCII characters are not allowed outside of literals and identifiers}} 43 // expected-error@13 {{non-ASCII characters are not allowed outside of literals and identifiers}} 44 // expected-error@14 {{non-ASCII characters are not allowed outside of literals and identifiers}} 45 // expected-error@21 {{non-ASCII characters are not allowed outside of literals and identifiers}} expected-warning@21 {{declaration does not declare anything}} 46 47 # endif 48 #else 49 # if __STDC_VERSION__ >= 201112L 50 // C11 51 // expected-warning@9 {{using this character in an identifier is incompatible with C99}} 52 // expected-warning@11 {{using this character in an identifier is incompatible with C99}} 53 // expected-error@13 {{non-ASCII characters are not allowed outside of literals and identifiers}} 54 // expected-warning@14 {{using this character in an identifier is incompatible with C99}} 55 // expected-warning@20 {{starting an identifier with this character is incompatible with C99}} 56 // expected-error@21 {{expected identifier}} 57 58 # else 59 // C99 60 // expected-error@9 {{non-ASCII characters are not allowed outside of literals and identifiers}} 61 // expected-error@11 {{non-ASCII characters are not allowed outside of literals and identifiers}} 62 // expected-error@13 {{non-ASCII characters are not allowed outside of literals and identifiers}} 63 // expected-error@14 {{non-ASCII characters are not allowed outside of literals and identifiers}} 64 // expected-error@20 {{expected identifier}} 65 // expected-error@21 {{non-ASCII characters are not allowed outside of literals and identifiers}} expected-warning@21 {{declaration does not declare anything}} 66 67 # endif 68 #endif 69
