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
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -fexceptions -fcxx-exceptions -verify -Wno-dynamic-exception-spec %std_cxx98- %s
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int *use_new(int N) {
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if (N == 1)
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return new int;
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return new int [N];
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}
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void use_delete(int* ip, int N) {
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if (N == 1)
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delete ip;
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else
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delete [] ip;
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}
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namespace std {
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class bad_alloc { };
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typedef __SIZE_TYPE__ size_t;
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}
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void* operator new(std::size_t) throw(std::bad_alloc);
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#if __cplusplus < 201103L
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// expected-note@-2 {{previous declaration}}
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#endif
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void* operator new[](std::size_t) throw(std::bad_alloc);
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void operator delete(void*) throw(); // expected-note{{previous declaration}}
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void operator delete[](void*) throw();
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void* operator new(std::size_t);
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#if __cplusplus < 201103L
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// expected-warning@-2 {{'operator new' is missing exception specification 'throw(std::bad_alloc)'}}
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#endif
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void operator delete(void*);
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#if __cplusplus < 201103L
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// expected-warning@-2 {{'operator delete' is missing exception specification 'throw()'}}
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#else
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// expected-warning@-4 {{previously declared with an explicit exception specification redeclared with an implicit}}
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#endif
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