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xpcom/tests/ShowAlignments.cpp@6474c204b198 (annotated)

xpcom/tests/ShowAlignments.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	/* show the size and alignment requirements of various types */
michael@0	7
michael@0	8	#include "nsMemory.h"
michael@0	9	#include <stdio.h>
michael@0	10
michael@0	11	struct S {
michael@0	12	double d;
michael@0	13	char c;
michael@0	14	short s;
michael@0	15	};
michael@0	16
michael@0	17	int main()
michael@0	18	{
michael@0	19	static const char str[] =
michael@0	20	"Type %s has size %u and alignment requirement %u\n";
michael@0	21	#define SHOW_TYPE(t_) \
michael@0	22	printf(str, #t_, unsigned(sizeof(t_)), unsigned(NS_ALIGNMENT_OF(t_)))
michael@0	23
michael@0	24	SHOW_TYPE(char);
michael@0	25	SHOW_TYPE(unsigned short);
michael@0	26	SHOW_TYPE(int);
michael@0	27	SHOW_TYPE(long);
michael@0	28	SHOW_TYPE(uint8_t);
michael@0	29	SHOW_TYPE(int16_t);
michael@0	30	SHOW_TYPE(uint32_t);
michael@0	31	SHOW_TYPE(void*);
michael@0	32	SHOW_TYPE(double);
michael@0	33	SHOW_TYPE(short[7]);
michael@0	34	SHOW_TYPE(S);
michael@0	35	SHOW_TYPE(double S::*);
michael@0	36
michael@0	37	return 0;
michael@0	38	}