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150ca5309e
Summary: For types deduced from typedef's and typeof's, don't warn for duplicate declaration specifiers in C90 unless -pedantic. Create a third diagnostic type for duplicate declaration specifiers. Previously, we had an ExtWarn and a Warning. This change adds a third, Extension, which only warns when -pedantic is set, staying silent otherwise. Fixes PR32985. Reviewers: rsmith Reviewed By: rsmith Subscribers: srhines, cfe-commits Differential Revision: https://reviews.llvm.org/D52849 llvm-svn: 343740
21 lines
702 B
C
21 lines
702 B
C
/*
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RUN: %clang_cc1 %s -std=gnu89 -fsyntax-only 2>&1 | FileCheck -check-prefix=CHECK-GNU89 %s -allow-empty
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RUN: %clang_cc1 %s -std=gnu89 -pedantic -fsyntax-only 2>&1 | FileCheck -check-prefix=CHECK-GNU89-PEDANTIC %s
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*/
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typedef const int t;
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const t c_i;
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/*
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CHECK-GNU89-NOT: 7:1: warning: duplicate 'const' declaration specifier
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CHECK-GNU89-PEDANTIC: 7:1: warning: duplicate 'const' declaration specifier
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*/
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const int c_i2;
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const typeof(c_i2) c_i3;
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/*
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CHECK-GNU89-NOT: 14:7: warning: extension used
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CHECK-GNU89-NOT: 14:1: warning: duplicate 'const' declaration specifier
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CHECK-GNU89-PEDANTIC: 14:7: warning: extension used
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CHECK-GNU89-PEDANTIC: 14:1: warning: duplicate 'const' declaration specifier
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*/
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