24 lines · c
1// RUN: %clang_cc1 -std=c17 -fsyntax-only -verify=ext -Wno-unused %s2// RUN: %clang_cc1 -std=c2x -fsyntax-only -verify=compat -Wpre-c2x-compat -Wno-unused %s3// RUN: %clang_cc1 -fsyntax-only -verify=cpp -Wbit-int-extension -Wno-unused -x c++ %s4 5#if 18446744073709551615uwb // ext-warning {{'_BitInt' suffix for literals is a C23 extension}} \6 compat-warning {{'_BitInt' suffix for literals is incompatible with C standards before C23}} \7 cpp-error {{invalid suffix 'uwb' on integer constant}}8#endif9 10#if 18446744073709551615__uwb // ext-error {{invalid suffix '__uwb' on integer constant}} \11 compat-error {{invalid suffix '__uwb' on integer constant}} \12 cpp-warning {{'_BitInt' suffix for literals is a Clang extension}}13#endif14 15void func(void) {16 18446744073709551615wb; // ext-warning {{'_BitInt' suffix for literals is a C23 extension}} \17 compat-warning {{'_BitInt' suffix for literals is incompatible with C standards before C23}} \18 cpp-error {{invalid suffix 'wb' on integer constant}}19 20 18446744073709551615__wb; // ext-error {{invalid suffix '__wb' on integer constant}} \21 compat-error {{invalid suffix '__wb' on integer constant}} \22 cpp-warning {{'_BitInt' suffix for literals is a Clang extension}}23}24