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a04892f62e
At configure time, check for <stdint.h>. If we don't have it, find
integer types of various sizes. On Windows, where we can't run
compilation tests in configure, hard-code definitions suggesting the
use of the built-in __intN types for the exact-size types, and
<stddef.h> for the pointer-sized types.
Use namespace-clean names for the preprocessor macros we define.
Since these types are used in the public JavaScript API, the configure
script needs to place the definitions it finds in js-config.h, the
installed configure-generated header, so it can be used by jsapi.h and
that gang.
New header js/src/jsstdint.h does what it takes to get definitions for
the exact-size and pointer-size integral types. It includes
<stdint.h> when available, uses the types found by configure.in to
define the {,u}int{8,16,32,64,ptr}_t types itself, or uses the __intN
types and the <stddef.h> header.
Remove now-unnecessary and possibly conflicting definitions of intN_t
types from js/src/nanojit/avmplus.h.
97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sw=4 et tw=78:
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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 mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Jim Blandy
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* Portions created by the Initial Developer are Copyright (C) 2008
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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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/* This header provides definitions for the <stdint.h> types we use,
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even on systems that lack <stdint.h>. */
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#ifndef jsstdint_h___
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#define jsstdint_h___
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#include "js-config.h"
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/* If we have a working stdint.h, use it. */
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#if defined(JS_HAVE_STDINT_H)
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#include <stdint.h>
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/* If the configure script was able to find appropriate types for us,
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use those. */
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#elif defined(JS_INT8_TYPE)
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typedef signed JS_INT8_TYPE int8_t;
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typedef signed JS_INT16_TYPE int16_t;
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typedef signed JS_INT32_TYPE int32_t;
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typedef signed JS_INT64_TYPE int64_t;
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typedef signed JS_INTPTR_TYPE intptr_t;
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typedef unsigned JS_INT8_TYPE uint8_t;
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typedef unsigned JS_INT16_TYPE uint16_t;
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typedef unsigned JS_INT32_TYPE uint32_t;
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typedef unsigned JS_INT64_TYPE uint64_t;
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typedef unsigned JS_INTPTR_TYPE uintptr_t;
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#else
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/* Microsoft Visual C/C++ has built-in __intN types. */
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#if defined(JS_HAVE___INTN)
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typedef __int8 int8_t;
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typedef __int16 int16_t;
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typedef __int32 int32_t;
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typedef __int64 int64_t;
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typedef unsigned __int8 uint8_t;
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typedef unsigned __int16 uint16_t;
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typedef unsigned __int32 uint32_t;
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typedef unsigned __int64 uint64_t;
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#else
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#error "couldn't find exact-width integer types"
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#endif
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/* Microsoft Visual C/C++ defines intptr_t and uintptr_t in <stddef.h>. */
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#if defined(JS_STDDEF_H_HAS_INTPTR_T)
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#include <stddef.h>
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#else
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#error "couldn't find definitions for intptr_t, uintptr_t"
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#endif
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#endif /* JS_HAVE_STDINT_H */
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#endif /* jsstdint_h___ */
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