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c286d6fdee
This is motivated by tooling (clangd, libclang etc) - headers without declarations are legitimate even if they're not valid TUs. The other use -x c-header cases (PCH/modules) are nonstandard anyway and this warning doesn't seem necessary there either. Differential Revision: https://reviews.llvm.org/D85789
12 lines
504 B
C
12 lines
504 B
C
// RUN: %clang_cc1 -fsyntax-only -std=c99 -pedantic -W -verify %s
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// RUN: %clang_cc1 -fsyntax-only -x c-header -std=c99 -pedantic-errors -W %s
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// RUN: %clang_cc1 -fsyntax-only -x c++ -std=c++03 -pedantic-errors -W %s
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#include "completely-empty-header-file.h"
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// no-warning -- an empty file is OK
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#define A_MACRO_IS_NOT_GOOD_ENOUGH 1
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// In C we should get this warning, but in C++ (or a header) we shouldn't.
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// expected-warning{{ISO C requires a translation unit to contain at least one declaration}}
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