difftime(3C) Standard C Library Functions difftime(3C)NAMEdifftime - 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 arith‐
metic properties defined for type time_t.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOctime(3C), attributes(5), standards(5)SunOS 5.10 24 Jul 2002 difftime(3C)