名前空間
変種
操作

signbit

提供: cppreference.com
< c‎ | numeric‎ | math

 
 
 
一般的な数学関数
機能します
Original:
Functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
基本操作
Original:
Basic operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
remainder(C99)
remquo(C99)
fma(C99)
fmax(C99)
fmin(C99)
fdim(C99)
nan
nanf
nanl
(C99)
(C99)
(C99)
指数関数
Original:
Exponential functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
電源機能
Original:
Power functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sqrt
cbrt(C99)
hypot(C99)
pow
三角関数や双曲線関数
Original:
Trigonometric and hyperbolic functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
エラーおよびガンマ関数
Original:
Error and gamma functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
最も近い整数の浮動小数点演算
Original:
Nearest integer floating point operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ceil
floor
round
lround
llround
(C99)
(C99)
(C99)
trunc(C99)
nearbyint(C99)
rint
lrint
llrint
(C99)
(C99)
(C99)
点操作関数に浮かぶ
Original:
Floating point manipulation functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ldexp
scalbn
scalbln
(C99)
(C99)
ilogb(C99)
logb(C99)
分類
Original:
Classification
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
マクロ定数
Original:
Macro constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 
Defined in header <math.h>
#define signbit(arg) /* implementation defined */
指定された浮動小数点数argが負であるかどうかを決定します。マクロは、整数値を返します.
Original:
Determines if the given floating point number arg is negative. The macro returns an integral value.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] パラメータ

arg -
浮動小数点値
Original:
floating point value
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 値を返します

arg場合は0以外の整数値は0そうでなければ、負の値になります
Original:
Nonzero integral value if arg is negative, 0 otherwise
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] も参照してください

浮動小数点値の絶対値(|x|
Original:
absolute value of a floating point value (|x|)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(関数) [edit]
浮動小数点値の符号をコピーします
Original:
copies the sign of a floating point value
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(関数) [edit]
C++ documentation for signbit