Q_QABS(3) FreeBSD Library Functions Manual Q_QABS(3)
NAME
Q_QABS, Q_Q2S, Q_Q2F - fixed-point math functions which operate on a
single Q number
SYNOPSIS
#include <sys/qmath.h>
QTYPE
Q_QABS(QTYPE q);
double
Q_Q2D(QTYPE q);
float
Q_Q2F(QTYPE q);
DESCRIPTION
The Q_QABS() function returns an absolute value representation of q.
The Q_Q2D() and Q_Q2F() functions return the double and float
representations of q respectively.
All of those functions operate on the following data types: s8q_t, u8q_t,
s16q_t, u16q_t, s32q_t, u32q_t, s64q_t, and u64q_t, which are referred to
generically as QTYPE.
For more details, see qmath(3).
RETURN VALUES
Q_QABS() function returns a QTYPE that is identical to that of q.
The Q_Q2D() and Q_Q2F() functions return the double and float
representations of q respectively.
SEE ALSO
errno(2), qmath(3), stdint(7)
HISTORY
The qmath(3) functions first appeared in FreeBSD 13.0.
AUTHORS
The qmath(3) functions and this manual page were written by Lawrence
Stewart <
[email protected]> and sponsored by Netflix, Inc.
FreeBSD 14.1-RELEASE-p8 July 8, 2018 FreeBSD 14.1-RELEASE-p8