зеркало из https://github.com/mozilla/gecko-dev.git
127 строки
4.1 KiB
C++
127 строки
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the JavaScript 2 Prototype.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef systemtypes_h
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#define systemtypes_h
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#include <cstddef>
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#ifdef _WIN32
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// Turn off warnings about identifiers too long in browser information
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#pragma warning(disable: 4786)
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#pragma warning(disable: 4711)
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#pragma warning(disable: 4710)
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// Turn off 'failure to generate copy constructor/assignment operator' warning
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#pragma warning(disable: 4610)
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#pragma warning(disable: 4512)
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#endif
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#define MAX_UINT16 (65535)
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// Define int8, int16, int32, int64, uint8, uint16, uint32, uint64, and uint.
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typedef unsigned int uint;
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typedef unsigned char uchar;
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typedef signed char int8;
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typedef unsigned char uint8;
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typedef short int16;
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typedef unsigned short uint16;
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#ifdef _WIN32
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typedef long int32;
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typedef unsigned long uint32;
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typedef __int64 int64;
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typedef unsigned __int64 uint64;
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#else
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typedef int int32;
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typedef unsigned int uint32;
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typedef long long int64;
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typedef unsigned long long uint64;
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using std::size_t;
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using std::ptrdiff_t;
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#endif
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// Define this if the machine natively supports 64-bit integers
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#define NATIVE_INT64
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#define JS_HAVE_LONG_LONG
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// Define float32 and float64.
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typedef double float64;
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typedef float float32;
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// A UTF-16 character
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// Use wchar_t on platforms on which wchar_t has 16 bits; otherwise use int16.
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// Note that in C++ wchar_t is a distinct type rather than a typedef for some integral type.
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// Like char, a char16 can be either signed or unsigned at the implementation's discretion.
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#ifdef __GNUC__
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// GCC's wchar_t is 32 bits, so we can't use it.
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typedef uint16 char16;
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typedef uint16 uchar16;
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#else
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typedef wchar_t char16;
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typedef wchar_t uchar16;
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#endif
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#ifdef _WIN32
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#ifndef IS_LITTLE_ENDIAN
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#define IS_LITTLE_ENDIAN
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#endif
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#endif
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#ifdef __i386__
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#define IS_LITTLE_ENDIAN
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#endif
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// basicAlignment is the maximum alignment required by any native type. An
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// object aligned to a multiple of basicAlignment can hold any native type.
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// malloc should return a pointer whose lgBasicAlignment least significant bits
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// are clear. Currently basicAlignment is set to 8 to allow doubles and int64s
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// to have their natural alignment; may be customized for individual platforms.
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const uint lgBasicAlignment = 3;
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const uint basicAlignment = 1u<<lgBasicAlignment;
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//
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// Bit manipulation
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//
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#ifndef JS_BIT
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#define JS_BIT(n) ((uint32)1 << (n))
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#endif
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#define JS_BITMASK(n) (JS_BIT(n) - 1)
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#endif /* systemtypes_h */
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