.TH LIBSIMPLE_STRTOTIMESPEC 3 libsimple
.SH NAME
libsimple_strtotimespec, libsimple_strtotimeval \- convert a string to a duration data structure

.SH SYNOPSIS
.nf
#include <libsimple.h>

int libsimple_strtotimespec(struct timespec *restrict \fIts\fP, const char *\fIs\fP, char **\fIend\fP);
int libsimple_strtotimeval(struct timeval *restrict \fItv\fP, const char *\fIs\fP, char **\fIend\fP);

#ifndef strtotimespec
# define strtotimespec libsimple_strtotimespec
#endif
#ifndef strtotimeval
# define strtotimeval libsimple_strtotimeval
#endif
.fi
.PP
Link with
.IR \-lsimple .

.SH DESCRIPTION
The
.BR libsimple_strtotimespec ()
and
.BR libsimple_strtotimeval ()
functions will parse the string
.IR s ,
representing a real value of number of seconds,
and store the value in
.I ts
and
.R tv
respectively, rounding to the nearest nanosecond
(for the
.BR libsimple_strtotimespec ())
or microsecond
(for the
.BR libsimple_strtotimeval ()).
These functions will ignore any leading whitespace
and byte where the parsing stopped, as
.I s
with an offset, to
.IR end .
The parsed part of
.I s
must contain atleast one digit and be on the
format
.BR [+-]\e?[0-9]*\e(\e.[0-9]*\e(\e.[0-9]*\e|([0-9]*)\e)\e?\e)\e? .
where the digits in
.BR \e2 ,
if any, are repeating decimals and must contain atleast
one digit if it is included.

.SH RETURN VALUE
The
.BR libsimple_strtotimespec ()
and
.BR libsimple_strtotimeval ()
functions return 0 upon successful completion;
otherwise \-1 is returned.

.SH ERRORS
The
.BR libsimple_strtotimespec ()
and
.BR libsimple_strtotimeval ()
functions fail if:
.TP
.B EINVAL
.I s
does not represent a real value in a recognised format.
.I *end
will not be set.
.TP
.B ERANGE
The result is too large or too small to be store. Either
.I *ts
will be set to
.I {.tv_sec=TIME_MAX,.tv_nsec=999999999L}
and
.I *tv
set to
.I {.tv_sec=TIME_MAX,.tv_usec=999999L}
(if the result is too large) or to
.I {.tv_sec=TIME_MIN,.tv_nsec=0L}
and
.I {.tv_sec=TIME_MIN,.tv_usec=0L}
(if the result is too small).
.I *end
will be set.

.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface	Attribute	Value
T{
.BR libsimple_strtotimespec ()
.br
.BR libsimple_strtotimeval ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_strtotimespec ()
.br
.BR libsimple_strtotimeval ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_strtotimespec ()
.br
.BR libsimple_strtotimeval ()
T}	Async-cancel safety	AC-Safe
.TE

.SH EXAMPLES
None.

.SH APPLICATION USAGE
None.

.SH RATIONALE
None.

.SH FUTURE DIRECTIONS
None.

.SH NOTES
None.

.SH HISTORY
libsimple 1.0

.SH BUGS
None.

.SH SEE ALSO
.BR libsimple_sumtimespec (3),
.BR libsimple_difftimespec (3),
.BR libsimple_multimespec (3),
.BR libsimple_cmptimespec (3),
.BR libsimple_timespectostr (3),
.BR libsimple_timespectodouble (3),
.BR libsimple_doubletotimespec (3),
.BR libsimple_timeval2timespec (3)