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/*

 * difftime.c

 * Original Author:	G. Haley

 */

/*

FUNCTION

<>---subtract two times

INDEX

	difftime

ANSI_SYNOPSIS

	#include 

	double difftime(time_t <[tim1]>, time_t <[tim2]>);

TRAD_SYNOPSIS

	#include 

	double difftime(<[tim1]>, <[tim2]>)

	time_t <[tim1]>;

	time_t <[tim2]>;

DESCRIPTION

Subtracts the two times in the arguments: `<<<[tim1]> - <[tim2]>>>'.

RETURNS

The difference (in seconds) between <[tim2]> and <[tim1]>, as a <>.

PORTABILITY

ANSI C requires <>, and defines its result to be in seconds

in all implementations.

<> requires no supporting OS subroutines.

*/

#include 

double

_DEFUN (difftime, (tim1, tim2),

	time_t tim1 _AND

	time_t tim2)

{

  return (double)(tim1 - tim2);

}