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std::allocator and std::pmr::polymorphic_allocator should throw std::bad_array_new_length from their allocate member functions if the number of bytes required cannot be represented in std::size_t. libstdc++-v3/ChangeLog: * config/abi/pre/gnu.ver: Add new symbol. * include/bits/functexcept.h (__throw_bad_array_new_length): Declare new function. * include/ext/malloc_allocator.h (malloc_allocator::allocate): Throw bad_array_new_length for impossible sizes (LWG 3190). * include/ext/new_allocator.h (new_allocator::allocate): Likewise. * include/std/memory_resource (polymorphic_allocator::allocate) (polymorphic_allocator::allocate_object): Use new function, __throw_bad_array_new_length. * src/c++11/functexcept.cc (__throw_bad_array_new_length): Define. * testsuite/20_util/allocator/lwg3190.cc: New test.
119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
// Function-Based Exception Support -*- C++ -*-
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// Copyright (C) 2001-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file bits/functexcept.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{exception}
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*
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* This header provides support for -fno-exceptions.
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*/
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//
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// ISO C++ 14882: 19.1 Exception classes
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//
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#ifndef _FUNCTEXCEPT_H
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#define _FUNCTEXCEPT_H 1
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#include <bits/c++config.h>
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#include <bits/exception_defines.h>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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// Helper for exception objects in <except>
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void
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__throw_bad_exception(void) __attribute__((__noreturn__));
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// Helper for exception objects in <new>
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void
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__throw_bad_alloc(void) __attribute__((__noreturn__));
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void
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__throw_bad_array_new_length(void) __attribute__((__noreturn__));
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// Helper for exception objects in <typeinfo>
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void
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__throw_bad_cast(void) __attribute__((__noreturn__));
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void
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__throw_bad_typeid(void) __attribute__((__noreturn__));
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// Helpers for exception objects in <stdexcept>
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void
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__throw_logic_error(const char*) __attribute__((__noreturn__));
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void
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__throw_domain_error(const char*) __attribute__((__noreturn__));
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void
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__throw_invalid_argument(const char*) __attribute__((__noreturn__));
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void
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__throw_length_error(const char*) __attribute__((__noreturn__));
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void
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__throw_out_of_range(const char*) __attribute__((__noreturn__));
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void
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__throw_out_of_range_fmt(const char*, ...) __attribute__((__noreturn__))
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__attribute__((__format__(__gnu_printf__, 1, 2)));
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void
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__throw_runtime_error(const char*) __attribute__((__noreturn__));
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void
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__throw_range_error(const char*) __attribute__((__noreturn__));
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void
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__throw_overflow_error(const char*) __attribute__((__noreturn__));
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void
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__throw_underflow_error(const char*) __attribute__((__noreturn__));
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// Helpers for exception objects in <ios>
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void
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__throw_ios_failure(const char*) __attribute__((__noreturn__));
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void
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__throw_ios_failure(const char*, int) __attribute__((__noreturn__));
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// Helpers for exception objects in <system_error>
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void
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__throw_system_error(int) __attribute__((__noreturn__));
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// Helpers for exception objects in <future>
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void
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__throw_future_error(int) __attribute__((__noreturn__));
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// Helpers for exception objects in <functional>
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void
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__throw_bad_function_call() __attribute__((__noreturn__));
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace
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#endif
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