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.TH LIBSIMPLE_MULTIMESPEC 3 2018-10-29 libsimple
.SH NAME
libsimple_multimespec, libsimple_multimeval \- multiply a duration with an integer
.SH SYNOPSIS
.nf
#include <libsimple.h>
int libsimple_multimespec(struct timespec *\fIprod\fP, const struct timespec *\fImultiplicand\fP, int \fImultiplier\fP);
int libsimple_multimeval(struct timeval *\fIprod\fP, const struct timeval *\fImultiplicand\fP, int \fImultiplier\fP);
#ifndef multimespec
# define multimespec libsimple_multimespec
#endif
#ifndef multimeval
# define multimeval libsimple_multimeval
#endif
.fi
.PP
Link with
.IR \-lsimple .
.SH DESCRIPTION
The
.BR libsimple_multimespec ()
and
.BR libsimple_multimeval ()
functions calculates the product of
.I multiplicand
and
.I multiplier
and stores the result in
.IR prod .
.PP
These functions assume that
.I multiplicand->tv_nsec
is in its valid range ([0, 1000000000) for
.BR libsimple_multimespec ()
and [0, 1000000) for
.BR libsimple_multimeval ()).
.SH RETURN VALUE
The
.BR libsimple_multimespec ()
and
.BR libsimple_multimeval ()
functions return 0 on successful completion;
otherwise, \-1 is returned and
.I errno
is set to indicate the error.
.SH ERRORS
The
.BR libsimple_multimespec ()
and
.BR libsimple_multimeval ()
functions fail if:
.TP
.B ERANGE
The result is too large or too small to be stored; if the
result is too large
.I *diff
will be set to
.I {.tv_sec=TIME_MAX,.tv_nsec=999999999L}
for the
.BR libsimple_multimespec ()
function and to
.I {.tv_sec=TIME_MAX,.tv_usec=999999L}
for the
.BR libsimple_multimeval ()
function, if the result is too small
.I *diff
will be set to
.I {.tv_sec=TIME_MIN,.tv_nsec=0}
for the
.BR libsimple_multimespec ()
function and to
.I {.tv_sec=TIME_MIN,.tv_usec=0}
for the
.BR libsimple_multimeval ()
function.
.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_multimespec ()
.br
.BR libsimple_multimeval ()
T} Thread safety MT-Safe
T{
.BR libsimple_multimespec ()
.br
.BR libsimple_multimeval ()
T} Async-signal safety AS-Safe
T{
.BR libsimple_multimespec ()
.br
.BR libsimple_multimeval ()
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 BUGS
None.
.SH SEE ALSO
.BR libsimple_sumtimespec (3),
.BR libsimple_difftimespec (3),
.BR libsimple_cmptimespec (3),
.BR libsimple_timespectostr (3),
.BR libsimple_strtotimespec (3),
.BR libsimple_timespectodouble (3),
.BR libsimple_doubletotimespec (3),
.BR libsimple_timeval2timespec (3)
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