llvm-project/clang/test/SemaCXX/Inputs/malloc.h

extern "C" {
extern void *malloc (__SIZE_TYPE__ __size) throw () __attribute__ ((__malloc__)) ;
}
Work around an annoying, non-standard optimization in the glibc headers, where malloc (and many other libc functions) are declared with empty throw specifications, e.g., extern void malloc (__SIZE_TYPE__ __size) throw () __attribute__ ((__malloc__)) ; The C++ standard doesn't seem to allow this, and redeclaring malloc as the standard permits (as follows) resulted in Clang (rightfully!) complaining about mis-matched exception specifications. void malloc(size_t size); We work around this by silently propagating an empty throw specification "throw()" from a function with C linkage declared in a system header to a redeclaration that has no throw specifier. Ick. llvm-svn: 95969 2010-02-12 15:32:17 +08:00			`extern "C" {`
			`extern void *malloc (__SIZE_TYPE__ __size) throw () __attribute__ ((__malloc__)) ;`
			`}`