config/msvc-stl-wrapper.template.h

   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 // Include mozalloc after the STL header and all other headers it includes
  16 // have been preprocessed.
  17 #if !defined(MOZ_INCLUDE_MOZALLOC_H)
  18 #  define MOZ_INCLUDE_MOZALLOC_H
  19 #  define MOZ_INCLUDE_MOZALLOC_H_FROM_${HEADER}
  20 #endif
  21
  22 #ifdef _DEBUG
  23 // From
  24 //   http://msdn.microsoft.com/en-us/library/aa985982%28VS.80%29.aspx
  25 // and
  26 //   http://msdn.microsoft.com/en-us/library/aa985965%28VS.80%29.aspx
  27 // there appear to be two types of STL container checking.  The
  28 // former is enabled by -D_DEBUG (which is implied by -MDd or -MTd), and
  29 // looks to be full generation/mutation checked iterators as done by
  30 // _GLIBCXX_DEBUG.  The latter appears to just be bounds checking, and
  31 // is enabled by the following macros.  It appears that the _DEBUG
  32 // iterators subsume _SECURE_SCL, and the following settings are
  33 // default anyway, so we'll just leave this commented out.
  34 //#  define _SECURE_SCL 1
  35 //#  define _SECURE_SCL_THROWS 0
  36 #else
  37 // Note: _SECURE_SCL iterators are on by default in opt builds.  We
  38 // could leave them on, but since gcc doesn't, we might as well
  39 // preserve that behavior for perf reasons.  nsTArray is in the same
  40 // camp as gcc.  Can revisit later.
  41 //
  42 // FIXME/bug 551254: because we're not wrapping all the STL headers we
  43 // use, undefining this here can cause some headers to be built with
  44 // iterator checking and others not.  Turning this off until we have a
  45 // better plan.
  46 //#  undef _SECURE_SCL
  47 #endif
  48
  49 // C4275: When _HAS_EXCEPTIONS is set to 0, system STL header
  50 //        will generate the warning which we can't modify.
  51 // C4530: We know that code won't be able to catch exceptions,
  52 //        but that's OK because we're not throwing them.
  53 #pragma warning( push )
  54 #pragma warning( disable : 4275 4530 )
  55
  56 #ifdef __clang__
  57 #include_next <${HEADER}>
  58 #else
  59 #include <${HEADER_PATH}>
  60 #endif
  61
  62 #pragma warning( pop )
  63
  64 #ifdef MOZ_INCLUDE_MOZALLOC_H_FROM_${HEADER}
  65 // See if we're in code that can use mozalloc.
  66 #  if !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC)
  67 #    include "mozilla/mozalloc.h"
  68 #  else
  69 #    error "STL code can only be used with infallible ::operator new()"
  70 #  endif
  71 #endif
  72
  73 #endif  // if mozilla_${HEADER}_h