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std::islessequal

提供: cppreference.com
< cpp‎ | numeric‎ | math

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C++
 
ニューメリックスライブラリ
一般的な数学関数
浮動小数点環境
複素数
数値配列
擬似乱数生成
コンパイル時有理数演算 (C++11)
汎用の数値演算
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
一般的な数学関数
機能します
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Functions
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基本操作
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Basic operations
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remainder(C++11)
remquo(C++11)
fma(C++11)
fmax(C++11)
fmin(C++11)
fdim(C++11)
nan
nanf
nanl		(C++11)
(C++11)
(C++11)
指数関数
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Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
電源機能
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Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
三角関数や双曲線関数
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Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
エラーおよびガンマ関数
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Error and gamma functions
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erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
最も近い整数の浮動小数点演算
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Nearest integer floating point operations
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ceil
floor
round
lround
llround		(C++11)
(C++11)
(C++11)
trunc(C++11)
nearbyint(C++11)
rint
lrint
llrint		(C++11)
(C++11)
(C++11)
点操作関数に浮かぶ
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Floating point manipulation functions
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ldexp
scalbn
scalbln		(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward		(C++11)
(C++11)
copysign(C++11)
分類/比較
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Classification/Comparison
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fpclassify(C++11)
isfinite(C++11)
isinf(C++11)
isnan(C++11)
isnormal(C++11)
signbit(C++11)
isgreater(C++11)
isgreaterequal(C++11)
isless(C++11)
islessequal(C++11)
islessgreater(C++11)
isunordered(C++11)
マクロ定数
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Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN		(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
 
Defined in header <cmath>
bool islessequal( float x, float y );
 (C++11およびそれ以降)
bool islessequal( double x, double y );
 (C++11およびそれ以降)
bool islessequal( long double x, long double y );
 (C++11およびそれ以降)
浮動小数点数x浮動小数点演算の例外を設定することなく、より小さいまたは浮動小数点数yに等しいかどうかを判断します.
Original:
Determines if the floating point number x is less than or equal to the floating-point number y, without setting floating-point exceptions.
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目次

[編集] パラメータ

x -
浮動小数点値
Original:
floating point value
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y -
浮動小数点値
Original:
floating point value
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[編集] 値を返します

truex <= yもし、そうでなければfalse
Original:
true if x <= y, false otherwise
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[編集] ノート

引数のいずれかまたは両方がNaNの場合は、浮動小数点数のためのビルトインoperator<=はFE_INVALIDを上げることができる。この関数は、operator<=の "静かな"バージョンです.
Original:
The built-in operator<= for floating-point numbers may raise FE_INVALID if one or both of the arguments is NaN. This function is a "quiet" version of operator<=.
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[編集] 参照
x <= yを実装する関数オブジェクト
Original:
function object implementing x <= y
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(クラステンプレート) [edit]
(C++11)
最初の浮動小数点引数かどうかをチェックしますが2番目の値より大きいか等しい
Original:
checks if the first floating-point argument is greater or equal than the second
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(関数) [edit]
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