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
TheQ_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
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 <lstewart@FreeBSD.org> and sponsored by Netflix, Inc.