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a1545f51a9
This adds an extension warning when using the preprocessor conditionals in a language mode they're not officially supported in, and an opt-in warning for compatibility with previous standards. Fixes #55306 Differential Revision: https://reviews.llvm.org/D125178
60 lines
2.5 KiB
C
60 lines
2.5 KiB
C
// For C
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// RUN: %clang_cc1 -std=c99 -fsyntax-only -verify=pre-c2x-pedantic -pedantic %s
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// RUN: %clang_cc1 -std=c2x -fsyntax-only -verify=pre-c2x-compat -Wpre-c2x-compat %s
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// RUN: not %clang_cc1 -std=c99 -fsyntax-only -verify %s
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// RUN: not %clang_cc1 -std=c2x -fsyntax-only -verify -pedantic %s
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// RUN: not %clang_cc1 -std=c2x -fsyntax-only -verify %s
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// For C++
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify=pre-cpp2b-pedantic -pedantic %s
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// RUN: %clang_cc1 -x c++ -std=c++2b -fsyntax-only -verify=pre-cpp2b-compat -Wpre-c++2b-compat %s
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// RUN: not %clang_cc1 -x c++ -fsyntax-only -verify %s
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// RUN: not %clang_cc1 -x c++ -std=c++2b -fsyntax-only -verify -pedantic %s
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// RUN: not %clang_cc1 -x c++ -std=c++2b -fsyntax-only -verify %s
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int x;
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#if 1
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#elifdef A // #1
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#endif
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// For C
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// pre-c2x-pedantic-warning@#1 {{use of a '#elifdef' directive is a C2x extension}}
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// pre-c2x-compat-warning@#1 {{use of a '#elifdef' directive is incompatible with C standards before C2x}}
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// For C++
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// pre-cpp2b-pedantic-warning@#1 {{use of a '#elifdef' directive is a C++2b extension}}
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// pre-cpp2b-compat-warning@#1 {{use of a '#elifdef' directive is incompatible with C++ standards before C++2b}}
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#if 1
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#elifndef B // #2
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#endif
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// For C
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// pre-c2x-pedantic-warning@#2 {{use of a '#elifndef' directive is a C2x extension}}
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// pre-c2x-compat-warning@#2 {{use of a '#elifndef' directive is incompatible with C standards before C2x}}
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// For C++
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// pre-cpp2b-pedantic-warning@#2 {{use of a '#elifndef' directive is a C++2b extension}}
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// pre-cpp2b-compat-warning@#2 {{use of a '#elifndef' directive is incompatible with C++ standards before C++2b}}
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#if 0
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#elifdef C
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#endif
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// For C
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// pre-c2x-pedantic-warning@-3 {{use of a '#elifdef' directive is a C2x extension}}
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// pre-c2x-compat-warning@-4 {{use of a '#elifdef' directive is incompatible with C standards before C2x}}
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// For C++
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// pre-cpp2b-pedantic-warning@-7 {{use of a '#elifdef' directive is a C++2b extension}}
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// pre-cpp2b-compat-warning@-8 {{use of a '#elifdef' directive is incompatible with C++ standards before C++2b}}
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#if 0
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#elifndef D
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#endif
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// For C
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// pre-c2x-pedantic-warning@-3 {{use of a '#elifndef' directive is a C2x extension}}
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// pre-c2x-compat-warning@-4 {{use of a '#elifndef' directive is incompatible with C standards before C2x}}
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// For C++
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// pre-cpp2b-pedantic-warning@-7 {{use of a '#elifndef' directive is a C++2b extension}}
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// pre-cpp2b-compat-warning@-8 {{use of a '#elifndef' directive is incompatible with C++ standards before C++2b}}
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