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// RUN: %clang_cc1 -std=c17 -fsyntax-only -verify=ext -Wno-unused %s
// RUN: %clang_cc1 -std=c2x -fsyntax-only -verify=compat -Wpre-c2x-compat -Wno-unused %s
// RUN: %clang_cc1 -fsyntax-only -verify=cpp -Wbit-int-extension -Wno-unused -x c++ %s
#if 18446744073709551615uwb // ext-warning {{'_BitInt' suffix for literals is a C23 extension}} \
compat-warning {{'_BitInt' suffix for literals is incompatible with C standards before C23}} \
cpp-error {{invalid suffix 'uwb' on integer constant}}
#endif
#if 18446744073709551615__uwb // ext-error {{invalid suffix '__uwb' on integer constant}} \
compat-error {{invalid suffix '__uwb' on integer constant}} \
cpp-warning {{'_BitInt' suffix for literals is a Clang extension}}
#endif
void func(void) {
18446744073709551615wb; // ext-warning {{'_BitInt' suffix for literals is a C23 extension}} \
compat-warning {{'_BitInt' suffix for literals is incompatible with C standards before C23}} \
cpp-error {{invalid suffix 'wb' on integer constant}}
18446744073709551615__wb; // ext-error {{invalid suffix '__wb' on integer constant}} \
compat-error {{invalid suffix '__wb' on integer constant}} \
cpp-warning {{'_BitInt' suffix for literals is a Clang extension}}
}
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