зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.9 KiB
C
55 строки
1.9 KiB
C
/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
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/*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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// Convience macros for converting nsString's to chars +
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// creating temporary char[] bufs.
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#ifndef NS_STR_UTIL_H
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#define NS_STR_UTIL_H
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// nsString to temporary char[] macro
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// Convience MACROS to convert an nsString to a char * which use a
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// static char array if possible to reduce memory fragmentation,
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// otherwise they allocate a char[] which must be freed.
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// REMEMBER to always use the NS_FREE_STR_BUF after using the
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// NS_ALLOC_STR_BUF. You can not nest NS_ALLOC_STR_BUF's.
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#define NS_ALLOC_CHAR_BUF(aBuf, aSize, aActualSize) \
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int _ns_tmpActualSize = aActualSize; \
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char _ns_smallBuffer[aSize]; \
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char * const aBuf = _ns_tmpActualSize <= aSize ? _ns_smallBuffer : new char[_ns_tmpActualSize];
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#define NS_FREE_CHAR_BUF(aBuf) \
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if (aBuf != _ns_smallBuffer) \
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delete[] aBuf;
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#define NS_ALLOC_STR_BUF(aBuf, aStrName, aTempSize) \
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NS_ALLOC_CHAR_BUF(aBuf, aTempSize, aStrName.Length()+1); \
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aStrName.ToCString(aBuf, aStrName.Length()+1);
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#define NS_FREE_STR_BUF(aBuf) \
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NS_FREE_CHAR_BUF(aBuf)
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#endif // NSStringUtil
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