зеркало из https://github.com/mozilla/gecko-dev.git
109 строки
3.3 KiB
C++
109 строки
3.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <ostream>
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#include <istream>
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#include <string>
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#include <stdarg.h>
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#include <stdio.h>
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#include <mozilla/Assertions.h>
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/* GLIBCXX_3.4.8 is from gcc 4.1.1 (111691)
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GLIBCXX_3.4.9 is from gcc 4.2.0 (111690)
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GLIBCXX_3.4.10 is from gcc 4.3.0 (126287)
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GLIBCXX_3.4.11 is from gcc 4.4.0 (133006)
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GLIBCXX_3.4.12 is from gcc 4.4.1 (147138)
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GLIBCXX_3.4.13 is from gcc 4.4.2 (151127)
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GLIBCXX_3.4.14 is from gcc 4.5.0 (151126)
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GLIBCXX_3.4.15 is from gcc 4.6.0 (160071)
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GLIBCXX_3.4.16 is from gcc 4.6.1 (172240)
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GLIBCXX_3.4.17 is from gcc 4.7.0 (174383)
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GLIBCXX_3.4.18 is from gcc 4.8.0 (190787)
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GLIBCXX_3.4.19 is from gcc 4.8.1 (199309)
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GLIBCXX_3.4.20 is from gcc 4.9.0 (199307)
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GLIBCXX_3.4.21 is from gcc 5.0 (210290)
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This file adds the necessary compatibility tricks to avoid symbols with
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version GLIBCXX_3.4.16 and bigger, keeping binary compatibility with
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libstdc++ 4.6.1.
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*/
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#define GLIBCXX_VERSION(a, b, c) (((a) << 16) | ((b) << 8) | (c))
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#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 18)
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// Implementation of utility functions for the prime rehash policy used in
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// unordered_map and unordered_set.
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#include <unordered_map>
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#include <tr1/unordered_map>
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namespace std
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{
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size_t
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__detail::_Prime_rehash_policy::_M_next_bkt(size_t __n) const
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{
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tr1::__detail::_Prime_rehash_policy policy(_M_max_load_factor);
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size_t ret = policy._M_next_bkt(__n);
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_M_next_resize = policy._M_next_resize;
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return ret;
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}
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pair<bool, size_t>
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__detail::_Prime_rehash_policy::_M_need_rehash(size_t __n_bkt,
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size_t __n_elt,
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size_t __n_ins) const
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{
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tr1::__detail::_Prime_rehash_policy policy(_M_max_load_factor);
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policy._M_next_resize = _M_next_resize;
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pair<bool, size_t> ret = policy._M_need_rehash(__n_bkt, __n_elt, __n_ins);
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_M_next_resize = policy._M_next_resize;
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return ret;
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}
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}
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#endif
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#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 20)
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namespace std {
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/* We shouldn't be throwing exceptions at all, but it sadly turns out
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we call STL (inline) functions that do. */
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void __throw_out_of_range_fmt(char const* fmt, ...)
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{
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va_list ap;
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char buf[1024]; // That should be big enough.
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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buf[sizeof(buf) - 1] = 0;
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va_end(ap);
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__throw_range_error(buf);
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}
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}
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#endif
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#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 20)
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/* Technically, this symbol is not in GLIBCXX_3.4.20, but in CXXABI_1.3.8,
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but that's equivalent, version-wise. Those calls are added by the compiler
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itself on `new Class[n]` calls. */
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extern "C" void
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__cxa_throw_bad_array_new_length()
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{
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MOZ_CRASH();
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}
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#endif
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#if MOZ_LIBSTDCXX_VERSION >= GLIBCXX_VERSION(3, 4, 21)
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/* While we generally don't build with exceptions, we have some host tools
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* that do use them. libstdc++ from GCC 5.0 added exception constructors with
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* char const* argument. Older versions only have a constructor with
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* std::string. */
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namespace std {
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runtime_error::runtime_error(char const* s)
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: runtime_error(std::string(s))
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{
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}
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}
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#endif
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