derek.holloway
7502bf64a4
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240 lines
18 KiB
C
240 lines
18 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify -Wc++-keyword %s
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// RUN: %clang_cc1 -fsyntax-only -verify -Wc++-compat %s
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// RUN: %clang_cc1 -fsyntax-only -verify=good %s
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// RUN: %clang_cc1 -fsyntax-only -verify=cxx -x c++ -std=c++2c %s
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// good-no-diagnostics
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// 'try', 'this' and 'throw' are not tested as identifiers, but are instead
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// tested as other constructs (otherwise there would be redefinition errors in
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// C).
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int catch; // expected-warning {{identifier 'catch' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int class; // expected-warning {{identifier 'class' conflicts with a C++ keyword}} \
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cxx-error {{declaration of anonymous class must be a definition}} \
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cxx-warning {{declaration does not declare anything}}
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int const_cast; // expected-warning {{identifier 'const_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int delete; // expected-warning {{identifier 'delete' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int dynamic_cast; // expected-warning {{identifier 'dynamic_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int explicit; // expected-warning {{identifier 'explicit' conflicts with a C++ keyword}} \
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cxx-error {{'explicit' can only appear on non-static member functions}} \
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cxx-warning {{declaration does not declare anything}}
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int export; // expected-warning {{identifier 'export' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int friend; // expected-warning {{identifier 'friend' conflicts with a C++ keyword}} \
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cxx-error {{'friend' used outside of class}} \
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cxx-warning {{declaration does not declare anything}}
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int mutable; // expected-warning {{identifier 'mutable' conflicts with a C++ keyword}} \
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cxx-warning {{declaration does not declare anything}}
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int namespace; // expected-warning {{identifier 'namespace' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int new; // expected-warning {{identifier 'new' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int operator; // expected-warning {{identifier 'operator' conflicts with a C++ keyword}} \
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cxx-error {{expected a type}}
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int private; // expected-warning {{identifier 'private' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int protected; // expected-warning {{identifier 'protected' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int public; // expected-warning {{identifier 'public' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int reinterpret_cast; // expected-warning {{identifier 'reinterpret_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int static_cast; // expected-warning {{identifier 'static_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int template; // expected-warning {{identifier 'template' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int typename; // expected-warning {{identifier 'typename' conflicts with a C++ keyword}} \
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cxx-error {{expected a qualified name after 'typename'}}
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int typeid; // expected-warning {{identifier 'typeid' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int using; // expected-warning {{identifier 'using' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int virtual; // expected-warning {{identifier 'virtual' conflicts with a C++ keyword}} \
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cxx-error {{'virtual' can only appear on non-static member functions}} \
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cxx-warning {{declaration does not declare anything}}
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int wchar_t; // expected-warning {{identifier 'wchar_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int char8_t; // expected-warning {{identifier 'char8_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int char16_t; // expected-warning {{identifier 'char16_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int char32_t; // expected-warning {{identifier 'char32_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int noexcept; // expected-warning {{identifier 'noexcept' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int co_await; // expected-warning {{identifier 'co_await' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int co_return; // expected-warning {{identifier 'co_return' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int co_yield; // expected-warning {{identifier 'co_yield' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int consteval; // expected-warning {{identifier 'consteval' conflicts with a C++ keyword}} \
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cxx-error {{consteval can only be used in function declarations}}
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int constinit; // expected-warning {{identifier 'constinit' conflicts with a C++ keyword}} \
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cxx-error {{constinit can only be used in variable declarations}}
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int concept; // expected-warning {{identifier 'concept' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int requires; // expected-warning {{identifier 'requires' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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// Now try the same thing, but as struct members.
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struct S {
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int catch; // expected-warning {{identifier 'catch' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int class; // expected-warning {{identifier 'class' conflicts with a C++ keyword}} \
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cxx-error {{declaration of anonymous class must be a definition}} \
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cxx-warning {{declaration does not declare anything}}
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int const_cast; // expected-warning {{identifier 'const_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int delete; // expected-warning {{identifier 'delete' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int dynamic_cast; // expected-warning {{identifier 'dynamic_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int explicit; // expected-warning {{identifier 'explicit' conflicts with a C++ keyword}} \
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cxx-error {{'explicit' can only appear on non-static member functions}} \
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cxx-warning {{declaration does not declare anything}}
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int export; // expected-warning {{identifier 'export' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int friend; // expected-warning {{identifier 'friend' conflicts with a C++ keyword}} \
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cxx-error {{'friend' must appear first in a non-function declaration}}
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int mutable; // expected-warning {{identifier 'mutable' conflicts with a C++ keyword}} \
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cxx-warning {{declaration does not declare anything}}
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int namespace; // expected-warning {{identifier 'namespace' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int new; // expected-warning {{identifier 'new' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int operator; // expected-warning {{identifier 'operator' conflicts with a C++ keyword}} \
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cxx-error {{expected a type}}
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int private; // expected-warning {{identifier 'private' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int protected; // expected-warning {{identifier 'protected' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int public; // expected-warning {{identifier 'public' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int reinterpret_cast; // expected-warning {{identifier 'reinterpret_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int static_cast; // expected-warning {{identifier 'static_cast' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int template; // expected-warning {{identifier 'template' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int this; // expected-warning {{identifier 'this' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int throw; // expected-warning {{identifier 'throw' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int try; // expected-warning {{identifier 'try' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int typename; // expected-warning {{identifier 'typename' conflicts with a C++ keyword}} \
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cxx-error {{expected a qualified name after 'typename'}}
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int typeid; // expected-warning {{identifier 'typeid' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int using; // expected-warning {{identifier 'using' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int virtual; // expected-warning {{identifier 'virtual' conflicts with a C++ keyword}} \
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cxx-error {{'virtual' can only appear on non-static member functions}} \
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cxx-warning {{declaration does not declare anything}}
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int wchar_t; // expected-warning {{identifier 'wchar_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int char8_t; // expected-warning {{identifier 'char8_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int char16_t; // expected-warning {{identifier 'char16_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int char32_t; // expected-warning {{identifier 'char32_t' conflicts with a C++ keyword}} \
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cxx-error {{cannot combine with previous 'int' declaration specifier}} \
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cxx-warning {{declaration does not declare anything}}
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int noexcept; // expected-warning {{identifier 'noexcept' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int co_await; // expected-warning {{identifier 'co_await' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int co_return; // expected-warning {{identifier 'co_return' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int co_yield; // expected-warning {{identifier 'co_yield' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}}
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int consteval; // expected-warning {{identifier 'consteval' conflicts with a C++ keyword}} \
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cxx-error {{consteval can only be used in function declarations}}
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int constinit; // expected-warning {{identifier 'constinit' conflicts with a C++ keyword}} \
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cxx-error {{constinit can only be used in variable declarations}}
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int concept; // expected-warning {{identifier 'concept' conflicts with a C++ keyword}} \
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cxx-error {{concept declarations may only appear in global or namespace scope}}
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int requires; // expected-warning {{identifier 'requires' conflicts with a C++ keyword}} \
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cxx-error {{expected member name or ';' after declaration specifiers}} \
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cxx-error {{trailing requires clause can only be used when declaring a function}} \
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cxx-error {{expected expression}}
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};
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// Smoke test that we catch a keyword used as an enumerator. If we diagnose
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// one, we'll diagnose them all.
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enum E {
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throw, // expected-warning {{identifier 'throw' conflicts with a C++ keyword}} \
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cxx-error {{expected identifier}}
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};
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// Smoke test that we catch a keyword used as a tag name.
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struct try { // expected-warning {{identifier 'try' conflicts with a C++ keyword}} \
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cxx-error {{declaration of anonymous struct must be a definition}} \
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cxx-warning {{declaration does not declare anything}}
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int x;
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};
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// Smoke test that we catch keyword use in a function name.
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void this(void); // expected-warning {{identifier 'this' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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// Smoke test that we catch keyword use in function parameters too.
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void func(int private); // expected-warning {{identifier 'private' conflicts with a C++ keyword}} \
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cxx-error {{invalid parameter name: 'private' is a keyword}}
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// These are conditionally a keyword in C++, so they're intentionally not being
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// diagnosed as a keyword.
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int module;
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int import;
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int override;
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int final;
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// We do not diagnose use of C++ keywords when used as a macro name because
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// that does not conflict with C++ (the macros will be replaced before the
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// keyword is seen by the parser).
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#define this 12
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// FIXME: These tests are disabled for C++ because it causes a crash.
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// See GH114815.
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#ifndef __cplusplus
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int decltype; // expected-warning {{identifier 'decltype' conflicts with a C++ keyword}}
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struct T {
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int decltype; // expected-warning {{identifier 'decltype' conflicts with a C++ keyword}}
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};
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#endif // __cplusplus
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// Check alternative operator names.
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int and; // expected-warning {{identifier 'and' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int and_eq; // expected-warning {{identifier 'and_eq' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int bitand; // expected-warning {{identifier 'bitand' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int bitor; // expected-warning {{identifier 'bitor' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int compl; // expected-warning {{identifier 'compl' conflicts with a C++ keyword}} \
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cxx-error {{expected a class name after '~' to name a destructor}}
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int not; // expected-warning {{identifier 'not' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int not_eq; // expected-warning {{identifier 'not_eq' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int or; // expected-warning {{identifier 'or' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int or_eq; // expected-warning {{identifier 'or_eq' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int xor; // expected-warning {{identifier 'xor' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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int xor_eq; // expected-warning {{identifier 'xor_eq' conflicts with a C++ keyword}} \
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cxx-error {{expected unqualified-id}}
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