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This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
// RUN: %clang_cc1 %s -fsyntax-only -std=c99 -verify
// RUN: %clang_cc1 %s -fsyntax-only -std=c11 -Wc99-compat -verify
// RUN: %clang_cc1 %s -fsyntax-only -x c++ -std=c++03 -Wc++11-compat -verify
// RUN: %clang_cc1 %s -fsyntax-only -x c++ -std=c++11 -Wc++98-compat -verify
// Note: This file contains Unicode characters; please do not remove them!
// Identifier characters
extern char aǶ; // C11, C++11
extern char aª; // C99, C11, C++11
extern char a΄; // C++03, C11, C++11
extern char a๐; // C99, C++03, C11, C++11
extern char a﹅; // none
extern char x̀; // C11, C++11. Note that this does not have a composed form.
// Identifier initial characters
extern char ๐; // C++03, C11, C++11
extern char ̀; // disallowed initially in C11/C++, always in C99
#if __cplusplus
// expected-error@11 {{not allowed in an identifier}}
// expected-error@13 {{not allowed in an identifier}}
// expected-error@20 {{character <U+0E50> not allowed at the start of an identifier}}
// expected-error@21 {{character <U+0300> not allowed at the start of an identifier}}
// expected-warning@20 {{declaration does not declare anything}}
// expected-warning@21 {{declaration does not declare anything}}
#else
# if __STDC_VERSION__ >= 201112L
// C11
// expected-warning@9 {{using this character in an identifier is incompatible with C99}}
// expected-warning@11 {{using this character in an identifier is incompatible with C99}}
// expected-error@13 {{not allowed in an identifier}}
// expected-warning@14 {{using this character in an identifier is incompatible with C99}}
// expected-warning@20 {{starting an identifier with this character is incompatible with C99}}
// expected-warning@21 {{declaration does not declare anything}}
// expected-error@21 {{not allowed at the start of an identifier}}
# else
// C99
// expected-error@9 {{not allowed in an identifier}}
// expected-error@11 {{not allowed in an identifier}}
// expected-error@13 {{not allowed in an identifier}}
// expected-error@14 {{not allowed in an identifier}}
// expected-error@20 {{character <U+0E50> not allowed at the start of an identifier}}
// expected-error@21 {{unexpected character <U+0300>}}
// expected-warning@20 {{declaration does not declare anything}}
// expected-warning@21 {{declaration does not declare anything}}
# endif
#endif