llvm-project/clang/test/Sema/vfprintf-invalid-redecl.c

// RUN: clang-cc %s -fsyntax-only -verify
// PR4290

// The following declaration is not compatible with vfprintf(), but make
// sure this isn't an error: autoconf expects this to build.
char vfprintf(); // expected-warning {{incompatible redeclaration of library function 'vfprintf'}} expected-note {{'vfprintf' is a builtin}}
PR4290: Handle vfprintf in a way that doesn't give any diagnostics for valid declarations and doesn't give an error for autoconf-style invalid redeclarations. This isn't quite ideal, but I don't see any other way easy way to handle it. (The only thing I can think of that's reasonably general is adding a new builtin type FILETy which is only compatible with a type equivalent to FILE, and that seems like overkill.) llvm-svn: 72760 2009-06-03 17:54:50 +08:00			`// RUN: clang-cc %s -fsyntax-only -verify`
			`// PR4290`

			`// The following declaration is not compatible with vfprintf(), but make`
			`// sure this isn't an error: autoconf expects this to build.`
			`char vfprintf(); // expected-warning {{incompatible redeclaration of library function 'vfprintf'}} expected-note {{'vfprintf' is a builtin}}`