83ea47acd7
GCC from 11 onwards defaults to -std=gnu++17 for C++ source files. We want to do the same (https://discourse.llvm.org/t/c-objc-switch-to-gnu-17-as-the-default-dialect/64360). Split RUN lines, adjust `-verify`, or add `__cplusplus < 201703L` or `-Wno-dynamic-exception-spec`, so that tests will pass regardless of gnu++14/gnu++17 default. We have a desire to mark a test compatible with multiple language standards. There are ongoing discussions how to add markers in the long term: * https://discourse.llvm.org/t/iterating-lit-run-lines/62596 * https://discourse.llvm.org/t/lit-run-a-run-line-multiple-times-with-different-replacements/64932 As a workaround in the short term, add lit substitutions `%std_cxx98-`, `%std_cxx11-14`, etc. They can be used for tests which work across multiple language standards. If a range has `n` standards, run lit multiple times, with `LIT_CLANG_STD_GROUP=0`, `LIT_CLANG_STD_GROUP=1`, etc to cover all `n` standards. Reviewed By: #clang-language-wg, aaron.ballman Differential Revision: https://reviews.llvm.org/D131464
38 lines
1.6 KiB
C++
38 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %std_cxx14- %s -DWARNING
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -verify %s -DWARNING
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Wno-deprecated-writable-strings -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Wno-deprecated -Wdeprecated-increment-bool -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -fwritable-strings -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Wno-write-strings -verify %s
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Werror=c++11-compat -verify %s -DERROR
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// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Werror=deprecated -Wno-error=deprecated-increment-bool -verify %s -DERROR
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// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s -DWARNING
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// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s -Wno-deprecated -Wdeprecated-increment-bool -DWARNING
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// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s -pedantic-errors -DERROR
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// rdar://8827606
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char *fun(void)
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{
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return "foo";
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#if defined(ERROR)
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#if __cplusplus >= 201103L
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// expected-error@-3 {{ISO C++11 does not allow conversion from string literal to 'char *'}}
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#else
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// expected-error@-5 {{conversion from string literal to 'char *' is deprecated}}
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#endif
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#elif defined(WARNING)
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#if __cplusplus >= 201103L
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// expected-warning@-9 {{ISO C++11 does not allow conversion from string literal to 'char *'}}
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#else
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// expected-warning@-11 {{conversion from string literal to 'char *' is deprecated}}
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#endif
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#endif
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}
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#if __cplusplus < 201703L
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void test(bool b)
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{
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++b; // expected-warning {{incrementing expression of type bool is deprecated}}
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}
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#endif
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