localtime_r(3STDC)

NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO | STANDARDS

NAME

ctime_r, asctime_r, gmtime_r, localtime_r- Transform binary date and time value to ASCII; Reentrent version

SYNOPSIS

#include <time.h>

char * ctime_r(const time_t * clock, char * result);
char * asctime_r(const struct tm * tm, char * result);
struct tm * localtime_r(const time_t * clock, struct tm * result);
struct tm * gmtime_r(const time_t * clock, struct tm * result);

DESCRIPTION

The ctime_r, gmtime_r, asctime_r, and localtime_r functions do the same thing as ctime (3STDC), gmtime (3STDC), asctime (3STDC), and localtime (3STDC), with the difference that they do not store their result in a static buffer. Instead, the necessary storage must be allocated by the caller and a pointer to it passed as the result argument.

For asctime_r, result must point to a 26 byte character array. For the others, result must point to a memory area large enough to hold a struct tm.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Evolving

SEE ALSO

asctime(3STDC) , ctime(3STDC) , localtime(3STDC) , gmtime(3STDC) , tzset(3STDC)

STANDARDS

These routines conform to POSIX.1c.

NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO | STANDARDS