名前空間
変種
操作

div, ldiv, lldiv

提供: cppreference.com
< c‎ | numeric‎ | math

 
 
 
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
labs
llabs
imaxabs



(C99)
fabs
div
ldiv
lldiv
imaxdiv



(C99)
fmod
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
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
電源機能
Original:
Power functions
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sqrt
cbrt(C99)
hypot(C99)
pow
三角関数や双曲線関数
Original:
Trigonometric and hyperbolic functions
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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
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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
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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
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ldexp
scalbn
scalbln
(C99)
(C99)
ilogb(C99)
logb(C99)
分類
Original:
Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
マクロ定数
Original:
Macro constants
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Defined in header <stdlib.h>
div_t     div( int x, int y );
ldiv_t    ldiv( long x, long y );
lldiv_t   lldiv( long long x, long long y );
Defined in header <inttypes.h>
imaxdiv_t imaxdiv( intmax_t x, intmax_t y );
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。 (C99およびそれ以降)
Original:
Computes the quotient (the result of the expression x/y) and remainder (the result of the expression x%y) simultaneously. (C99およびそれ以降)
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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。 (C99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. (C99まで)
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目次

[編集] ノート

C99までは、いずれかのオペランドが負の場合、商の丸めの方向とビルトイン除算と剰余演算子で剰余の符号は、実装定義であったが、それはdivには明確に定義されていたとldiv.
Original:
Until C99, 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 div and ldiv.
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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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(関数) [edit]
C++ documentation for div