os/ossrv/genericopenlibs/cstdlib/LTIME/DIFFTIME.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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* <<difftime>>---subtract two times
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* INDEX
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* difftime
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* ANSI_SYNOPSIS
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* #include <time.h>
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* double difftime(time_t <[tim1]>, time_t <[tim2]>);
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* TRAD_SYNOPSIS
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* #include <time.h>
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* double difftime(<[tim1]>, <[tim2]>)
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* time_t <[tim1]>;
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* time_t <[tim2]>;
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* Subtracts the two times in the arguments: `<<<[tim1]> - <[tim2]>>>'
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* that are in seconds.
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* RETURNS
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* The difference (in seconds) between <[tim2]> and <[tim1]>, as a <<double>>.
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* PORTABILITY
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* ANSI C requires <<difftime>>, and defines its result to be in seconds
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* in all implementations.
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* <<difftime>> requires no supporting OS subroutines.
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* 
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*
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*/
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#include <time.h>
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/**
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Return difference between two times.
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Calculates the time difference between tim1 and tim2 in seconds.
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@return The difference in seconds between the two times specified.
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@param tim2 Latter time 
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@param tim1 Former time
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*/
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EXPORT_C double
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difftime (time_t tim1, time_t tim2) __SOFTFP
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{
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  return ((double) (tim1 - tim2));
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}