svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
fegetprec(3m)
fesetprec(3M) Mathematical Library Functions fesetprec(3M)
NAME
fesetprec, fegetprec - control floating point rounding precision modes
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <fenv.h>
int fesetprec(int prec);
int fegetprec(void);
DESCRIPTION
The IEEE 754 standard defines rounding precision modes for systems that
always deliver intermediate results to destinations in extended double
precision format. These modes allow such systems to deliver correctly
rounded single and double precision results (in the absence of under‐
flow and overflow) with only one rounding.
The fesetprec() function sets the current rounding precision to the
precision specified by prec, which must be one of the following values
defined in <fenv.h>:
FE_FLTPREC round to single precision
FE_DBLPREC round to double precision
FE_LDBLPREC round to extended double precision
The default rounding precision when a program starts is FE_LDBLPREC.
The fegetprec() function returns the current rounding precision.
RETURN VALUES
The fesetprec() function returns a non-zero value if the requested
rounding precision is established and 0 otherwise.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) cw(2.75i) lw(2.75i) lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE ArchitectureIntel (see below) Availabilitysystem/li‐
brary/math Interface StabilityCommitted MT-LevelMT-Safe
These functions are not available on SPARC systems because SPARC
processors deliver intermediate results to destinations in single or
double format as determined by each floating point instruction.
SEE ALSO
fegetenv(3M), fesetround(3M), attributes(7)
Numerical Computation Guide
Solaris 11.4 12 Jul 2006 fesetprec(3M)