DIFFTIME(3C) Standard C Library Functions DIFFTIME(3C)

NAME

difftime - computes the difference between two calendar times

SYNOPSIS

#include <time.h>

double difftime(time_t time1, time_t time0);

DESCRIPTION

The difftime() function computes the difference between two calendar
times.

RETURN VALUES

The difftime() functions returns the difference (time1-time0)
expressed in seconds as a double.

USAGE

The difftime() function is provided because there are no general
arithmetic properties defined for type time_t.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

ctime(3C), attributes(7), standards(7)

July 24, 2002 DIFFTIME(3C)