SYNTAX
#include "taia.h"
extern int taia_add(struct taia* t,const struct taia* a,const struct
taia* b);
extern int taia_addsec(struct taia* t,const struct taia* s,int secs);
extern int taia_approx(const struct taia* t);
int taia_frac(const struct taia* t);
extern int taia_less(const struct tai* a,const struct tai* b);
extern int taia_now(struct taia* t);
extern int taia_pack(char* buf,const struct taia* t);
extern int taia_sub(struct taia* t,const struct taia* a,const struct
taia* b);
extern int taia_tai(const struct taia* t,struct tai* sec);
extern int taia_uint(struct taia* t,unsigned int secs);
extern int taia_unpack(const char* buf,struct taia* t);
DESCRIPTION
taia_add adds a to b and writes the result to t. The inputs and output
may overlap.
taia_addsec adds secs seconds to s and writes the result to t. The
inputs and output may overlap.
taia_approx returns a double-precision approximation of t. The result
of taia_approx is always nonnegative.
taia_frac returns a double-precision approximation to the fraction part
of t. The result of taia_frac is always nonnegative.
taia_less returns 1 if a is less than b, 0 otherwise.
taia_now puts the current time into t. More precisely: tai_now puts
into t its best guess as to the TAI64NA label for the 1-attosecond
interval that contains the current time.
This implementation of taia_now assumes that the time_t returned from
the time function represents the number of TAI seconds since 1970-01-01
00:00:10 TAI. This matches the convention used by the Olson tz library
in ``right'' mode.
Beware that many clocks are not set accurately, and even the best
scientific clocks are nowhere near 1-attosecond accuracy; however, an
inaccurate clock may still produce reasonably accurate time
differences.
taia_pack converts a TAI64NA label from internal format in t to
external TAI64NA format in buf.
taia_sub subtracts b from a and writes the result to t. The inputs and
output may overlap.
taia(3)
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