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65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* 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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#ifndef mozilla_${HEADER}_h
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#define mozilla_${HEADER}_h
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// For some reason, Apple's GCC refuses to honor -fno-exceptions when
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// compiling ObjC.
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#if __EXCEPTIONS && !(__OBJC__ && __GNUC__ && XP_IOS)
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# error "STL code can only be used with -fno-exceptions"
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#endif
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// Silence "warning: #include_next is a GCC extension"
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#pragma GCC system_header
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// mozalloc.h wants <new>; break the cycle by always explicitly
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// including <new> here. NB: this is a tad sneaky. Sez the gcc docs:
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//
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// `#include_next' does not distinguish between <file> and "file"
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// inclusion, nor does it check that the file you specify has the
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// same name as the current file. It simply looks for the file
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// named, starting with the directory in the search path after the
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// one where the current file was found.
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#include_next <new>
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// See if we're in code that can use mozalloc. NB: this duplicates
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// code in nscore.h because nscore.h pulls in prtypes.h, and chromium
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// can't build with that being included before base/basictypes.h.
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#if !defined(XPCOM_GLUE) && !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC)
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# include "mozilla/mozalloc.h"
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#else
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# error "STL code can only be used with infallible ::operator new()"
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#endif
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#if defined(DEBUG) && !defined(_GLIBCXX_DEBUG)
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// Enable checked iterators and other goodies
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//
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// FIXME/bug 551254: gcc's debug STL implementation requires -frtti.
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// Figure out how to resolve this with -fno-rtti. Maybe build with
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// -frtti in DEBUG builds?
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//
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// # define _GLIBCXX_DEBUG 1
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#endif
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#pragma GCC visibility push(default)
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#include_next <${HEADER}>
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#pragma GCC visibility pop
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// gcc calls a __throw_*() function from bits/functexcept.h when it
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// wants to "throw an exception". functexcept exists nominally to
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// support -fno-exceptions, but since we'll always use the system
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// libstdc++, and it's compiled with exceptions, then in practice
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// these __throw_*() functions will always throw exceptions (shades of
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// -fshort-wchar). We don't want that and so define our own inlined
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// __throw_*().
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#ifndef mozilla_throw_gcc_h
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# include "mozilla/throw_gcc.h"
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#endif
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#endif // if mozilla_${HEADER}_h
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