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80b64f0861
catching as non-noexcept This implements the following proposal from cxx-abi-dev: http://sourcerytools.com/pipermail/cxx-abi-dev/2016-October/002988.html ... which is necessary for complete support of http://wg21.link/p0012, specifically throwing noexcept function and member function pointers and catching them as non-noexcept pointers. Differential Review: https://reviews.llvm.org/D26178 llvm-svn: 285867
66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
//===---------------------- catch_function_03.cpp -------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// Can a noexcept function pointer be caught by a non-noexcept catch clause?
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// UNSUPPORTED: libcxxabi-no-exceptions, libcxxabi-no-qualified-function-types
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#include <cassert>
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template<bool Noexcept> void f() noexcept(Noexcept) {}
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template<bool Noexcept> using FnType = void() noexcept(Noexcept);
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template<bool ThrowNoexcept, bool CatchNoexcept>
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void check()
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{
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try
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{
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auto *p = f<ThrowNoexcept>;
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throw p;
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assert(false);
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}
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catch (FnType<CatchNoexcept> *p)
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{
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assert(ThrowNoexcept || !CatchNoexcept);
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assert(p == &f<ThrowNoexcept>);
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}
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catch (...)
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{
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assert(!ThrowNoexcept && CatchNoexcept);
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}
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}
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void check_deep() {
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auto *p = f<true>;
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try
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{
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throw &p;
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}
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catch (FnType<false> **q)
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{
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assert(false);
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}
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catch (FnType<true> **q)
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{
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}
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catch (...)
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{
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assert(false);
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}
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}
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int main()
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{
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check<false, false>();
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check<false, true>();
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check<true, false>();
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check<true, true>();
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check_deep();
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}
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