os/ossrv/genericopenlibs/cstdlib/LCHAR/MEMCMP.C
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* FUNCTION
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* <<memcmp>>---compare two memory areas
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* INDEX
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* memcmp
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* ANSI_SYNOPSIS
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* #include <string.h>
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* int memcmp(const void *<[s1]>, const void *<[s2]>, size_t <[n]>);
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* TRAD_SYNOPSIS
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* #include <string.h>
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* int memcmp(<[s1]>, <[s2]>, <[n]>)
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* void *<[s1]>;
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* void *<[s2]>;
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* size_t <[n]>;
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* This function compares not more than <[n]> characters of the
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* object pointed to by <[s1]> with the object pointed to by <[s2]>.
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* RETURNS
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* The function returns an integer greater than, equal to or
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* less than zero 	according to whether the object pointed to by
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* <[s1]> is greater than, equal to or less than the object
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* pointed to by <[s2]>.
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* PORTABILITY
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* <<memcmp>> is ANSI C.
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* <<memcmp>> requires no supporting OS subroutines.
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* QUICKREF
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* memcmp ansi pure
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* 
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*
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*/
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#include <string.h>
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/**
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Compare two buffers.
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Compares the fisrt num bytes of two memory blocks pointed by m1 and m1.
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@return a value indicating the relationship between the buffers
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@param m1 Pointer to buffer. 
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@param m2 Pointer to buffer. 
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@param n  Number of bytes to compare.
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*/
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IMPORT_C signed int memcompare(const unsigned char*, signed int, const unsigned char*, signed int);
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EXPORT_C int
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memcmp (const void* m1, const void* m2, size_t n)
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{
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  return memcompare((const unsigned char*)m1, n, (const unsigned char*)m2, n); 
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}