msvc-stl-wrapper.template.h (2830B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: sw=2 ts=8 et : 3 */ 4 /* This Source Code Form is subject to the terms of the Mozilla Public 5 * License, v. 2.0. If a copy of the MPL was not distributed with this 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 7 8 #ifndef mozilla_${HEADER}_h 9 #define mozilla_${HEADER}_h 10 11 #if _HAS_EXCEPTIONS 12 # error "STL code can only be used with -fno-exceptions" 13 #endif 14 15 #if defined(__clang__) 16 // Silence "warning: #include_next is a language extension [-Wgnu-include-next]" 17 #pragma clang system_header 18 #endif 19 20 // Include mozalloc after the STL header and all other headers it includes 21 // have been preprocessed. 22 #if !defined(MOZ_INCLUDE_MOZALLOC_H) 23 # define MOZ_INCLUDE_MOZALLOC_H 24 # define MOZ_INCLUDE_MOZALLOC_H_FROM_${HEADER} 25 #endif 26 27 #ifdef _DEBUG 28 // From 29 // http://msdn.microsoft.com/en-us/library/aa985982%28VS.80%29.aspx 30 // and 31 // http://msdn.microsoft.com/en-us/library/aa985965%28VS.80%29.aspx 32 // there appear to be two types of STL container checking. The 33 // former is enabled by -D_DEBUG (which is implied by -MDd or -MTd), and 34 // looks to be full generation/mutation checked iterators as done by 35 // _GLIBCXX_DEBUG. The latter appears to just be bounds checking, and 36 // is enabled by the following macros. It appears that the _DEBUG 37 // iterators subsume _SECURE_SCL, and the following settings are 38 // default anyway, so we'll just leave this commented out. 39 //# define _SECURE_SCL 1 40 //# define _SECURE_SCL_THROWS 0 41 #else 42 // Note: _SECURE_SCL iterators are on by default in opt builds. We 43 // could leave them on, but since gcc doesn't, we might as well 44 // preserve that behavior for perf reasons. nsTArray is in the same 45 // camp as gcc. Can revisit later. 46 // 47 // FIXME/bug 551254: because we're not wrapping all the STL headers we 48 // use, undefining this here can cause some headers to be built with 49 // iterator checking and others not. Turning this off until we have a 50 // better plan. 51 //# undef _SECURE_SCL 52 #endif 53 54 #include_next <${HEADER}> 55 56 #ifdef MOZ_INCLUDE_MOZALLOC_H_FROM_${HEADER} 57 // See if we're in code that can use mozalloc. 58 # if !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC) 59 // In recent versions of MSVC, <new>, which mozalloc.h includes, uses 60 // <type_traits> without including it. Before MSVC 17.7, this worked 61 // fine because <new> included <exception>, which includes <type_traits>. 62 // That is still the case, but it now also includes <cstdlib> before 63 // <type_traits>, so when something includes <exception> before <new>, 64 // we get here before <type_traits> is included, which ends up not working. 65 # include <type_traits> 66 # include "mozilla/mozalloc.h" 67 # else 68 # error "STL code can only be used with infallible ::operator new()" 69 # endif 70 #endif 71 72 #endif // if mozilla_${HEADER}_h