mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-14 03:30:17 +01:00
88 lines
3.7 KiB
C++
88 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1994-2000
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsPrintfCString_h___
|
|
#define nsPrintfCString_h___
|
|
|
|
#ifndef nsString_h___
|
|
#include "nsString.h"
|
|
#endif
|
|
|
|
|
|
/**
|
|
* |nsPrintfCString| lets you use a formated |printf| string as an |const nsACString|.
|
|
*
|
|
* myCStr += nsPrintfCString("%f", 13.917);
|
|
* // ...a general purpose substitute for |AppendFloat|
|
|
*
|
|
* For longer patterns, you'll want to use the constructor that takes a length
|
|
*
|
|
* nsPrintfCString(128, "%f, %f, %f, %f, %f, %f, %f, %i, %f", x, y, z, 3.2, j, k, l, 3, 3.1);
|
|
*
|
|
* Exceding the default size (which you must specify in the constructor, it is not determined)
|
|
* causes an allocation, so avoid that. If your formatted string exceeds the allocated space, it is
|
|
* cut off at the size of the buffer, no error is reported (and no out-of-bounds writing occurs).
|
|
* This class is intended to be useful for numbers and short
|
|
* strings, not arbitrary formatting of other strings (e.g., with %s). There is currently no
|
|
* wide version of this class, since wide |printf| is not generally available. That means
|
|
* to get a wide version of your formatted data, you must, e.g.,
|
|
*
|
|
* CopyASCIItoUTF16(nsPrintfCString("%f", 13.917"), myStr);
|
|
*
|
|
* That's another good reason to avoid this class for anything but numbers ... as strings can be
|
|
* much more efficiently handled with |NS_LITERAL_[C]STRING| and |nsLiteral[C]String|.
|
|
*/
|
|
|
|
class NS_COM nsPrintfCString : public nsCString
|
|
{
|
|
typedef nsCString string_type;
|
|
|
|
enum { kLocalBufferSize=15 };
|
|
// ought to be large enough for most things ... a |long long| needs at most 20 (so you'd better ask)
|
|
// pinkerton suggests 7. We should measure and decide what's appropriate
|
|
|
|
public:
|
|
// XXX don't these need to be declared CDECL ??
|
|
explicit nsPrintfCString( const char_type* format, ... );
|
|
nsPrintfCString( size_type n, const char_type* format, ...);
|
|
|
|
private:
|
|
char_type mLocalBuffer[ kLocalBufferSize + 1 ];
|
|
};
|
|
|
|
#endif // !defined(nsPrintfCString_h___)
|