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llvm-project/clang/test/SemaCXX/builtin-exception-spec.cpp

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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
// RUN: %clang_cc1 -isystem %S/Inputs -fsyntax-only -verify %s
[c++1z] Improve support for -fno-exceptions: we can't just ignore exception specifications in this mode in C++17, since they're part of the function type, so check and diagnose them like we would if exceptions were enabled. Better ideas welcome. llvm-svn: 288220
2016-11-30 08:13:55 +08:00
// RUN: %clang_cc1 -isystem %S/Inputs -fsyntax-only -verify -std=c++1z %s
Prior to adding the new "expected-no-diagnostics" directive to VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive. llvm-svn: 166280
2012-10-19 20:44:48 +08:00
// expected-no-diagnostics
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
#include <malloc.h>
extern "C" {
void *malloc(__SIZE_TYPE__);
}