llvm-project

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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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void operator "" (const char *); // expected-error {{expected identifier}}
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void operator "k" foo(const char *); // \
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  expected-error {{string literal after 'operator' must be '""'}} \
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  expected-warning{{user-defined literal suffixes not starting with '_' are reserved}}
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void operator "" tester (const char *); // \
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  expected-warning{{user-defined literal suffixes not starting with '_' are reserved}}
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