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44 lines
1.9 KiB
C
44 lines
1.9 KiB
C
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/* Implements the C99 <stdint.h> interface for C and C++ code. */
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#ifndef mozilla_StandardInteger_h_
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#define mozilla_StandardInteger_h_
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/*
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* The C99 standard header <stdint.h> exposes typedefs for common fixed-width
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* integer types. It would be feasible to simply #include <stdint.h>, but
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* MSVC++ versions prior to 2010 don't provide <stdint.h>. We could solve this
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* by reimplementing <stdint.h> for MSVC++ 2008 and earlier. But then we reach
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* a second problem: our custom <stdint.h> might conflict with a <stdint.h>
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* defined by an embedder already looking to work around the MSVC++ <stdint.h>
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* absence.
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*
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* We address these issues in this manner:
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*
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* 1. If the preprocessor macro MOZ_CUSTOM_STDINT_H is defined to a path to a
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* custom <stdint.h> implementation, we will #include it. Embedders using
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* a custom <stdint.h> must define this macro to an implementation that
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* will work with their embedding.
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* 2. Otherwise, if we are compiling with a an MSVC++ version without
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* <stdint.h>, #include our custom <stdint.h> reimplementation.
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* 3. Otherwise, #include the standard <stdint.h> provided by the compiler.
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*
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* Note that we can't call this file "stdint.h" or something case-insensitively
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* equal to "stdint.h" because then MSVC (and other compilers on
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* case-insensitive file systems) will include this file, rather than the system
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* stdint.h, when we ask for <stdint.h> below.
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*/
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#if defined(MOZ_CUSTOM_STDINT_H)
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# include MOZ_CUSTOM_STDINT_H
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#elif defined(_MSC_VER) && _MSC_VER < 1600
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# include "mozilla/MSStdInt.h"
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#else
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# include <stdint.h>
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#endif
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#endif /* mozilla_StandardInteger_h_ */
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