llvm-project/clang/test/SemaCXX/storage-class.cpp

// RUN: %clang_cc1 -fsyntax-only -verify %s
extern const int PR6495a = 42;
extern int PR6495b = 42; // expected-warning{{'extern' variable has an initializer}}
extern const int PR6495c[] = {42,43,44};

extern struct Test1 {}; // expected-warning {{'extern' is not permitted on a declaration of a type}}
extern "C" struct Test0 { int x; }; // no warning
Disable the "'extern' variable has an initializer" warning in C++, since it makes sense there to have const extern variables. Fixes PR6495. llvm-svn: 101818 2010-04-20 05:31:25 +08:00			`// RUN: %clang_cc1 -fsyntax-only -verify %s`
Only suppress the "extern variable has an initializer" warning when the extern entity being initialized is const. llvm-svn: 101821 2010-04-20 06:34:40 +08:00			`extern const int PR6495a = 42;`
			`extern int PR6495b = 42; // expected-warning{{'extern' variable has an initializer}}`
When checking whether to diagnose an initialized "extern" variable, look for the const on the base type rather than on the top-level type. Fixes PR6495 properly. llvm-svn: 102066 2010-04-22 22:36:26 +08:00			`extern const int PR6495c[] = {42,43,44};`
Don't warn about the 'extern' in 'extern "C"' on a tag decl. This is usually useless, but not always. llvm-svn: 128326 2011-03-26 10:09:52 +08:00
Add missing diagnostic for a nested-name-specifier on a free-standing type definition. Bump some related diagnostics from warning to extension in C++, since they're errors there. Add some missing checks for function specifiers on non-function declarations. llvm-svn: 177335 2013-03-19 06:52:47 +08:00			`extern struct Test1 {}; // expected-warning {{'extern' is not permitted on a declaration of a type}}`
Added warning on structures/unions that are empty or contain only bit fields of zero size. Warnings are generated in C++ mode and if only such type is defined inside extern "C" block. The patch fixed PR5065. Differential Revision: http://llvm-reviews.chandlerc.com/D2151 llvm-svn: 194653 2013-11-14 10:13:03 +08:00			`extern "C" struct Test0 { int x; }; // no warning`