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# Example: lr_get_attrib_double / lr.get_attrib_double

## lr_get_attrib_double

In the following example, lr_get_attrib_double retrieves the value of the time parameter from the mdrv command line string that was used to run the script.

    D:\<product>\bin\mdrv.exe
         -usr D:\LR_Tests\C\get_attribute\get_attribute.usr
         -out D:\LR_Tests\C\get_attribute\out
        -time 1.5
        -secondsInYear 30758400
        -MrsCollins Charlotte

lr_get_attrib_double assigns the value to a variable, wait_time. This variable is incorporated into the script and sets how long to wait between loops.

    Action() {
    	double wait_time;
    	long secInYear;
    	char *mrsCollins;
    	long t;
    	int i, loops = 3;
    	wait_time=lr_get_attrib_double("time");
    	secInYear = lr_get_attrib_long ("secondsInYear");
    	mrsCollins =lr_get_attrib_string ("MrsCollins");
    	if ( wait_time <= 0 ){
    	    lr_message("Illegal time value = %f \n", wait_time);
    	    return;
    	} else
    	{
    	    lr_message("Wait time value = %f", wait_time);
    	    lr_message("The number of seconds in a year is %ld", secInYear);
    	    lr_message("Mr. Collins' wife is named %s Lucas", mrsCollins);
    	}
    	 for (i=0; i < loops; ++i) {
    	    time(&t);
    	    lr_message("Time and date: %s", ctime(&t));
    	    lr_think_time(wait_time);
    	    }
    	 time(&t);
    	 lr_message("time and date: %s", ctime(&t));}
    	return 0;
    }

    Example: Output:

    Starting action Action.                      [MsgId: MMSG-15919]
    Wait time value = 1.500000                   [MsgId: MMSG-17999]
    The number of seconds in a year is 30758400  [MsgId: MMSG-17999]
    Mr. Collins' wife is named Charlotte Lucas   [MsgId: MMSG-17999]
    Time and date: Wed Jan 07 16:12:09 2004      [MsgId: MMSG-17999]
    Action.c(29): lr_think_time: 1.50 seconds.   [MsgId: MMSG-15948]
    Time and date: Wed Jan 07 16:12:10 2004      [MsgId: MMSG-17999]
    Action.c(29): lr_think_time: 1.50 seconds.   [MsgId: MMSG-15948]
    Time and date: Wed Jan 07 16:12:12 2004      [MsgId: MMSG-17999]
    Action.c(29): lr_think_time: 1.50 seconds.   [MsgId: MMSG-15948]
    time and date: Wed Jan 07 16:12:13 2004      [MsgId: MMSG-17999]
    Ending action Action.                        [MsgId: MMSG-15918]

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