std::valarray

 

C++

言語

コンセプト

ユーティリティライブラリ

ストリングスライブラリ

コンテナライブラリ

アルゴリズムライブラリ

イテレータライブラリ

ニューメリックスライブラリ

入力/出力ライブラリ

ローカライゼーションライブラリ

正規表現ライブラリ(C++11)

アトミック操作ライブラリ(C++11)

スレッドのサポートライブラリ(C++11)

 

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iota (C++11)

accumulate

inner_product

adjacent_difference

partial_sum

 

std::valarray

メンバ関数 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
valarray::valarray valarray::~valarray valarray::operator= valarray::operator[] valarray::swap valarray::size valarray::resize valarray::sum valarray::min valarray::max valarray::shift valarray::cshift valarray::apply	valarray::operator+ valarray::operator- valarray::operator~ valarray::operator! valarray::operator+= valarray::operator-= valarray::operator*= valarray::operator/= valarray::operator%= valarray::operator&= valarray::operator|= valarray::operator^= valarray::operator<<= valarray::operator>>=
非メンバ関数 Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
swap (C++11) begin (C++11) end (C++11) abs exp log log10 pow sqrt sin cos tan asin acos atan atan2 sinh cosh tanh	operator* operator/ operator% operator+ operator- operator^ None operator& operator| operator<< operator>> operator&& operator None operator== operator!= operator< operator> operator<= operator>=
ヘルパークラス Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
slice_array gslice_array indirect_array	slice gslice mask_array

 

Defined in header <valarray>
template<class T > class valarray;

std::valarray値の配列を表現し、操作するためのクラスです。これは、スライスと間接アクセス、要素単位の数学演算と一般添字演算子の様々な形式をサポートしています.

Original:

std::valarray is the class for representing and manipulating arrays of values. It supports element-wise mathematical operations and various forms of generalized subscript operators, slicing and indirect access.

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ノート

std::valarrayおよびヘルパークラスは、このようにこれらのクラスの操作は、Cプログラミング言語のキーワードrestrictの効果と似て最適化できるように、エイリアシングの特定の形態の自由になるように定義されています。また、valarrayの引数を取る関数と演算子は、それが可能なコンパイラはv1 = a*v2 + v3;た一時または複数のパスを避けて実行する1つのループのようなv1[i]= a*v2[i]+ v3[i];として発現を最適化するために作るためにプロキシオブジェクトを返すことが許可されています。しかし、式テンプレートはC + +のコンテナに同じ最適化手法を利用できるようにし、数値ライブラリの大半は、柔軟性のためvalarraysに式テンプレートを好む。いくつかは、C + +標準ライブラリの実装はstd::valarray（例えば、GNU libstdc + +がとLLVMのlibc + +）とごくまれvalarraysは、例えば、それ以上に最適化された上で効率的なオペレーションを実現するために、式テンプレートを使用Intel Parallel Studioの.

Original:

std::valarray and helper classes are defined to be free of certain forms of aliasing, thus allowing operations on these classes to be optimized similar to the effect of the keyword restrict in the C programming language. In addition, functions and operators that take valarray arguments are allowed to return proxy objects to make it possible for the compiler to optimize an expression such as v1 = a*v2 + v3; as a single loop that executes v1[i]= a*v2[i]+ v3[i]; avoiding any temporaries or multiple passes. However, 式テンプレート make the same optimization technique available for any C++ container, and the majority of numeric libraries prefer expression templates to valarrays for flexibility. Some C++ standard library implementations use expression templates to implement efficient operations on std::valarray (e.g. GNU libstdc++ and LLVM libc++), and only rarely valarrays are optimized any further, e.g. in Intel Parallel Studio.

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メンバータイプ

メンバー·タイプ Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
value_type	T

メンバ関数

(constructor)	新しい数値配列を構築します Original: constructs new numeric array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
(destructor)	数値配列を破棄します Original: destructs the numeric array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
operator=	内容が割り当てられます Original: assigns the contents The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
operator[]	valarrayの要素、スライス、またはマスクを設定/取得する Original: get/set valarray element, slice, or mask The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
operator+ operator- operator~ operator!	valarrayの各要素に単項算術演算子が適用されます Original: applies a unary arithmetic operator to each element of the valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
operator+= operator-= operator*= operator/= operator%= operator&= operator|= operator^= operator<<= operator>>=	valarrayの各要素に複合代入演算子を適用します Original: applies compound assignment operator to each element of the valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
swap	別のvalarrayとスワップ Original: swaps with another valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
size	valarrayのサイズを返します Original: returns the size of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
resize	valarrayのサイズを変更します Original: changes the size of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
sum	すべての要素の合計を計算します Original: calculates the sum of all elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
min	最小の要素を返します Original: returns the smallest element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
max	最大の要素を返します Original: returns the largest element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
shift	valarrayの要素をシフトゼロフィリング Original: zero-filling shift the elements of the valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
cshift	valarrayの要素を循環的にシフトした Original: circular shift of the elements of the valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数)
apply	applies a function to every element of a valarray (パブリックメンバ関数)

非メンバ関数

std::swap(std::valarray) (C++11)	std::swap()アルゴリズムを専門としています Original: specializes the std::swap() algorithm The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
std::begin(std::valarray) (C++11)	std::beginを専門としています Original: specializes std::begin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
std::end(std::valarray) (C++11)	std::endを専門としています Original: specializes std::end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
operator+ operator- operator* operator/ operator% operator& operator| operator^ operator<< operator>> operator&& operator||	2 valarrays、またはのvalarrayと値の各要素に二項演算子を適用します Original: applies binary operators to each element of two valarrays, or a valarray and a value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
operator== operator!= operator< operator<= operator> operator>=	2 valarraysまたは値を持つvalarrayを比較します Original: compares two valarrays or a valarray with a value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
abs(std::valarray)	valarrayの各要素に関数を適用しstd::abs Original: applies the function std::abs to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
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(std::valarray)	valarrayの各要素に関数を適用しstd::exp Original: applies the function std::exp to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
log(std::valarray)	valarrayの各要素に関数を適用しstd::log Original: applies the function std::log to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
log10(std::valarray)	valarrayの各要素に関数を適用しstd::log10 Original: applies the function std::log10 to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
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.
pow(std::valarray)	2 valarraysまたはvalarrayは、値への関数std::powを適用します Original: applies the function std::pow to two valarrays or a valarray and a value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
sqrt(std::valarray)	valarrayの各要素に関数を適用しstd::sqrt Original: applies the function std::sqrt to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
三角関数 Original: Trigonometric functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
sin(std::valarray)	valarrayの各要素に関数を適用しstd::sin Original: applies the function std::sin to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
cos(std::valarray)	valarrayの各要素に関数を適用しstd::cos Original: applies the function std::cos to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
tan(std::valarray)	valarrayの各要素に関数を適用しstd::tan Original: applies the function std::tan to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
asin(std::valarray)	valarrayの各要素に関数を適用しstd::asin Original: applies the function std::asin to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
acos(std::valarray)	valarrayの各要素に関数を適用しstd::acos Original: applies the function std::acos to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
atan(std::valarray)	valarrayの各要素に関数を適用しstd::atan Original: applies the function std::atan to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
atan2(std::valarray)	valarrayは、値への関数std::atan2を適用します Original: applies the function std::atan2 to a valarray and a value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
双曲線関数 Original: 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(std::valarray)	valarrayの各要素に関数を適用しstd::sinh Original: applies the function std::sinh to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
cosh(std::valarray)	valarrayの各要素に関数を適用しstd::cosh Original: applies the function std::cosh to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
tanh(std::valarray)	valarrayの各要素に関数を適用しstd::tanh Original: applies the function std::tanh to each element of valarray The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)

ヘルパークラス

slice	BLASのようなvalarrayのスライス：開始インデックス、長さ、ストライド Original: BLAS-like slice of a valarray: starting index, length, stride The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (クラス)
slice_array	スライスを適用した後のvalarrayのサブセットへのプロキシ Original: proxy to a subset of a valarray after applying a slice The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (クラステンプレート)
gslice	valarrayの一般的なスライス：開始インデックス、長さのセットは、ストライドのセット Original: generalized slice of a valarray: starting index, set of lengths, set of strides The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (クラス)
gslice_array	gsliceを適用した後のvalarrayのサブセットへのプロキシ Original: proxy to a subset of a valarray after applying a gslice The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (クラステンプレート)
mask_array	ブールマスク演算子[]を適用した後のvalarrayのサブセットへのプロキシ Original: proxy to a subset of a valarray after applying a boolean mask operator[] The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (クラステンプレート)
indirect_array	間接演算子[]を適用した後のvalarrayのサブセットへのプロキシ Original: proxy to a subset of a valarray after applying indirect operator[] The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (クラステンプレート)