llvm-project/clang/test/SemaCXX/struct-class-redecl.cpp

// RUN: %clang_cc1 -fsyntax-only -Wmismatched-tags -verify %s
class X; // expected-note 2{{here}}
typedef struct X * X_t; // expected-warning{{previously declared}}

template<typename T> struct Y; // expected-note{{previous}}
template<class U> class Y { }; // expected-warning{{previously declared}}

union X { int x; float y; }; // expected-error{{use of 'X' with tag type that does not match previous declaration}}
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446 2009-12-16 04:14:24 +08:00			`// RUN: %clang_cc1 -fsyntax-only -Wmismatched-tags -verify %s`
In C++, warn when something previously declared as a "struct" is later declared as a "class", or vice-versa. This warning is under the control of -Wmismatched-tags, which is off by default. llvm-svn: 71773 2009-05-15 00:41:31 +08:00			`class X; // expected-note 2{{here}}`
			`typedef struct X * X_t; // expected-warning{{previously declared}}`
One can use "class" and "struct" interchangeably to refer to a class in C++. Fixes <rdar://problem/6815995>. llvm-svn: 70784 2009-05-04 01:18:57 +08:00
In C++, warn when something previously declared as a "struct" is later declared as a "class", or vice-versa. This warning is under the control of -Wmismatched-tags, which is off by default. llvm-svn: 71773 2009-05-15 00:41:31 +08:00			`template<typename T> struct Y; // expected-note{{previous}}`
			`template<class U> class Y { }; // expected-warning{{previously declared}}`
One can use "class" and "struct" interchangeably to refer to a class in C++. Fixes <rdar://problem/6815995>. llvm-svn: 70784 2009-05-04 01:18:57 +08:00
			`union X { int x; float y; }; // expected-error{{use of 'X' with tag type that does not match previous declaration}}`