名前空間
変種
操作

std::div, std::ldiv, std::lldiv

提供: cppreference.com
< cpp‎ | numeric‎ | math

 
 
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
Original:
Functions
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基本操作
Original:
Basic operations
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abs(int)
labs
llabs
imaxabs



(C++11)
abs(float)
fabs
div
ldiv
lldiv
imaxdiv



(C++11)
fmod
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
Original:
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
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
三角関数や双曲線関数
Original:
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
Original:
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
Original:
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
Original:
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
Original:
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 <cstdlib>
std::div_t     div( int x, int y );
std::ldiv_t    div( long x, long y );
std::lldiv_t   div( long long x, long long y );
(C + + 11以来)
std::ldiv_t   ldiv( long x, long y );
std::lldiv_t lldiv( long long x, long long y );
(C + + 11以来)
Defined in header <cinttypes>
std::imaxdiv_t div( std::intmax_t x, std::intmax_t y );
(C + + 11以来)
std::imaxdiv_t imaxdiv( std::intmax_t x, std::intmax_t y );
(C + + 11以来)
商(発現x/yの結果)と剰余(発現x%yの結果)を同時に計算します。 (C + + 11以来)
Original:
Computes the quotient (the result of the expression x/y) and remainder (the result of the expression x%y) simultaneously. (C + + 11以来)
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同時に、商と剰余を計算します。商が(ゼロに向かって切り捨て)に破棄された小数部を持つ代数的な商です。残りはそのようなことquot * y + rem == xです。 (C + + 11時まで)
Original:
Computes quotient and remainder simultaneously. The quotient is the algebraic quotient with any fractional part discarded (truncated towards zero). The remainder is such that quot * y + rem == x. (C + + 11時まで)
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目次

[編集] ノート

オペランドの片方が陰性であったが、それはstd::divには明確に定義された場合は、C + +11までは、内蔵の除算と剰余演算子で商と剰余の符号の丸め方向は、実装定義であった.
Original:
Until C++11, the rounding direction of the quotient and the sign of the remainder in the built-in division and remainder operators was implementation-defined if either of the operands was negative, but it was well-defined in std::div.
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[編集] パラメータ

x, y -
整数値
Original:
integer values
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[編集] 値を返します

型の構造div_tldiv_tldiv_timaxdiv_tのように定義されます
Original:
Structure of type div_t, ldiv_t, ldiv_t, imaxdiv_t defined as:
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struct div_t {
    int quot;   // The quotient
    int rem;    // The remainder
};
 
struct ldiv_t {
    long quot;   // The quotient
    long rem;    // The remainder
};
 
struct lldiv_t {
    long long quot;   // The quotient
    long long rem;    // The remainder
};
 
struct imaxdiv_t {
    std::intmax_t quot;   // The quotient
    std::intmax_t rem;    // The remainder
};

[編集] も参照してください

浮動小数点除算の余り
Original:
remainder of the floating point division operation
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(機能) [edit]