difftime3
Calculate time difference
Usage
#include <time.h>
double difftime(time_t time1, time_t time0);
Library
Standard C library (libc, -lc)
Overview
The difftime() function returns the number of seconds elapsed between time time1 and time time0, represented as a double. Each time is a count of seconds.
difftime(b, a) acts like (b-a) except that the result does not overflow and is rounded to double.
Attributes
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| difftime() | Thread safety | MT-Safe |
Releases
19 releases since Debian 1.1 (Buzz); the text changed 13 times.