genericopenlibs/cstdlib/LTIME/GMTIME.C
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cstdlib/LTIME/GMTIME.C	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* FUNCTION
+* <<gmtime>>---convert time to UTC traditional form
+* INDEX
+* gmtime
+* ANSI_SYNOPSIS
+* #include <time.h>
+* struct tm *gmtime(const time_t *<[clock]>);
+* struct tm *gmtime_r(const time_t *<[clock]>, struct tm *<[res]>);
+* TRAD_SYNOPSIS
+* #include <time.h>
+* struct tm *gmtime(<[clock]>)
+* const time_t *<[clock]>;
+* struct tm *gmtime_r(<[clock]>, <[res]>)
+* const time_t *<[clock]>;
+* struct tm *<[res]>;
+* <<gmtime>> assumes the time at <[clock]> represents a local time.
+* <<gmtime>> converts it to UTC (Universal Coordinated Time, also known in some
+* countries as GMT, Greenwich Mean time), then converts the
+* representation from the arithmetic representation to
+* the traditional representation defined by <<struct tm>>.
+* <<gmtime>> constructs the traditional time representation in static
+* storage; each call to <<gmtime>> or <<localtime>> will overwrite the
+* information generated by previous calls to either function.
+* RETURNS
+* A pointer to the traditional time representation (<<struct tm>>).
+* PORTABILITY
+* ANSI C requires <<gmtime>>.
+* <<gmtime>> requires no supporting OS subroutines.
+* 
+*
+*/
+
+
+
+#include <sys/reent.h>
+#include <time.h>
+
+#ifndef _REENT_ONLY
+
+/**
+Convert time_t value to tm structure as UTC time.
+Converts timer to tm structure adjusting to 
+UTC (formerly known as GMT) timezone.  
+@return A pointer to a tm structure.
+This structure is statically allocated and shared by gmtime,
+localtime and ctime functions. 
+Each time one of these functions is called the content of
+the structure is overwritten.
+@param tim_p pointer to a time_t value, 
+usually returned by time function.
+*/
+EXPORT_C struct tm *
+gmtime (const time_t * tim_p)
+{
+  return gmtime_r (tim_p, &(_REENT->_struct_tm));
+}
+
+#endif