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72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
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/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
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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 ShowAlignments.cpp.
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*
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* The Initial Developer of the Original Code is the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation (original author)
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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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/* show the size and alignment requirements of various types */
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#include "nsMemory.h"
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#include <stdio.h>
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struct S {
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double d;
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char c;
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short s;
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};
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int main()
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{
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static const char str[] =
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"Type %s has size %u and alignment requirement %u\n";
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#define SHOW_TYPE(t_) \
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printf(str, #t_, unsigned(sizeof(t_)), unsigned(NS_ALIGNMENT_OF(t_)))
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SHOW_TYPE(char);
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SHOW_TYPE(unsigned short);
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SHOW_TYPE(int);
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SHOW_TYPE(long);
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SHOW_TYPE(PRUint8);
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SHOW_TYPE(PRInt16);
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SHOW_TYPE(PRUint32);
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SHOW_TYPE(PRFloat64);
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SHOW_TYPE(void*);
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SHOW_TYPE(double);
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SHOW_TYPE(short[7]);
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SHOW_TYPE(S);
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SHOW_TYPE(double S::*);
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return 0;
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}
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