svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
floatingpoint.h(3head)
floatingpoint.h(3HEAD) Headers floatingpoint.h(3HEAD)
NAME
floatingpoint.h, floatingpoint - IEEE floating point definitions
SYNOPSIS
#include <floatingpoint.h>
DESCRIPTION
This file defines constants, types, and functions used to implement
standard floating point according to ANSI/IEEE Std 754-1985. The func‐
tions are implemented in libc. The included header file <sys/ieeefp.h>
defines certain types of interest to the kernel.
IEEE Rounding Modes
fp_direction_type The type of the IEEE rounding direction mode.
Note: the order of enumeration varies according
to hardware.
fp_precision_type The type of the IEEE rounding precision mode,
which only applies on systems that support
extended precision such as machines based on the
Intel 80387 FPU or the 80486. SIGFPE handling:
sigfpe_code_type The type of a SIGFPE code.
sigfpe_handler_type The type of a user-definable SIGFPE exception
handler called to handle a particular SIGFPE
code.
SIGFPE_DEFAULT A macro indicating the default SIGFPE exception
handling, namely to perform the exception han‐
dling specified by the user, if any, and other‐
wise to dump core using abort(3C).
SIGFPE_IGNORE A macro indicating an alternate SIGFPE exception
handling, namely to ignore and continue execu‐
tion.
SIGFPE_ABORT A macro indicating an alternate SIGFPE exception
handling, namely to abort with a core dump.
IEEE Exception Handling
N_IEEE_EXCEPTION The number of distinct IEEE floating-point
exceptions.
fp_exception_type The type of the N_IEEE_EXCEPTION exceptions.
Each exception is given a bit number.
fp_exception_field_type The type intended to hold at least
N_IEEE_EXCEPTION bits corresponding to the
IEEE exceptions numbered by fp_excep‐
tion_type. Thus fp_inexact corresponds to
the least significant bit and fp_invalid to
the fifth least significant bit. Note: some
operations may set more than one exception.
IEEE Formats and Classification
single;extended;quadruple
Definitions of IEEE formats.
fp_class_type
An enumeration of the various classes of IEEE values and symbols.
IEEE Base Conversion
The functions described under floating_to_decimal(3C) and deci‐
mal_to_floating(3C) satisfy not only the IEEE Standard, but also the
stricter requirements of correct rounding for all arguments.
DECIMAL_STRING_LENGTH The length of a decimal_string.
decimal_string The digit buffer in a decimal_record.
decimal_record The canonical form for representing an
unpacked decimal floating-point number.
decimal_form The type used to specify fixed or floating
binary to decimal conversion.
decimal_mode A struct that contains specifications for con‐
version between binary and decimal.
decimal_string_form An enumeration of possible valid character
strings representing floating-point numbers,
infinities, or NaNs.
FILES
/usr/include/sys/ieeefp.h
SEE ALSO
decimal_to_floating(3C), string_to_decimal(3C), abort(3C), econ‐
vert(3C), floating_to_decimal(3C), sigfpe(3C), strtod(3C)
Oracle Solaris 11.4 5 Mar 1993 floatingpoint.h(3HEAD)