NAME
trunc, truncf,
truncl —
nearest integral value with magnitude
less than or equal to |x|
LIBRARY
library “libm”
SYNOPSIS
#include
<math.h>
double
trunc(double
x);
float
truncf(float
x);
long double
truncl(long
double x);
DESCRIPTION
Thetrunc(),
truncf(),
and
truncl()
functions return the nearest integral value with magnitude less than or equal
to |x|. They are equivalent to
rint(),
rintf(),
and
rintl()
respectively, in the FP_RZ rounding mode.
SEE ALSO
ceil(3), floor(3), fpsetround(3), math(3), nextafter(3), rint(3), round(3)
STANDARDS
The trunc(),
truncf(), and truncl()
functions conform to ISO/IEC 9899:1999
(“ISO C99”).