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std::make_unsigned

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C++
 
ユーティリティライブラリ
支援を入力します (basic types, RTTI, type traits)
動的なメモリ管理
エラー処理
プログラムユーティリティ
可変個引数関数
日付と時刻
関数オブジェクト
initializer_list(C++11)
bitset
hash(C++11)
関係演算子
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
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Swap, forward and move
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swap
forward(C++11)
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支援を入力します
基本的なタイプ
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Basic types
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基本的なタイプ
固定幅の整数型 (C++11)
数値の限界
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Numeric limits
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numeric_limits
Cの数値は、インターフェイスを制限します
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Runtime type information
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型の特徴
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Type traits
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is_arithmetic(C++11)
is_reference(C++11)
is_lvalue_reference(C++11)
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is_volatile(C++11)
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サポートされる操作
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Supported operations
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is_constructible
is_trivially_constructible
is_nothrow_constructible		(C++11)
(C++11)
(C++11)
is_default_constructible
is_trivially_default_constructible
is_nothrow_default_constructible		(C++11)
(C++11)
(C++11)
is_copy_constructible
is_trivially_copy_constructible
is_nothrow_copy_constructible		(C++11)
(C++11)
(C++11)
is_move_constructible
is_trivially_move_constructible
is_nothrow_move_constructible		(C++11)
(C++11)
(C++11)
is_assignable
is_trivially_assignable
is_nothrow_assignable		(C++11)
(C++11)
(C++11)
is_copy_assignable
is_trivially_copy_assignable
is_nothrow_copy_assignable		(C++11)
(C++11)
(C++11)
is_move_assignable
is_trivially_move_assignable
is_nothrow_move_assignable		(C++11)
(C++11)
(C++11)
is_destructible
is_trivially_destructible
is_nothrow_destructible		(C++11)
(C++11)
(C++11)
has_virtual_destructor(C++11)
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alignment_of(C++11)
rank(C++11)
extent(C++11)
型の変更
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Type modifications
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remove_cv
remove_const
remove_volatile		(C++11)
(C++11)
(C++11)
add_cv
add_const
add_volatile		(C++11)
(C++11)
(C++11)
make_signed(C++11)
make_unsigned(C++11)
型変換
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Type transformations
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aligned_storage(C++11)
aligned_union(C++11)
decay(C++11)
enable_if(C++11)
conditional(C++11)
common_type(C++11)
underlying_type(C++11)
result_of(C++11)
形質定数を入力します
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Type trait constants
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integral_constant(C++11)
 
Defined in header <type_traits>
template< class T >
struct make_unsigned;
 (C + + 11以来)
与えられた整数型または列挙型T、同じのcv-修飾子を使用して、typeに対応する符号なし整数型であるメンバのtypedefTを提供しています（ブール値を除く）.
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Given an integral (except bool) or enumeration type T, provides the member typedef type which is the unsigned integer type corresponding to T, with the same cv-qualifiers.
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[編集] メンバータイプ

名前
Original:
Name
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 Definition
type
Tに対応する符号なし整数型
Original:
the unsigned integer type corresponding to T
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[編集] 例

#include <iostream>
#include <type_traits>
 
int main() {
    typedef std::make_unsigned<char>::type char_type;
    typedef std::make_unsigned<int>::type int_type;
    typedef std::make_unsigned<volatile long>::type long_type;
 
    bool ok1 = std::is_same<char_type, unsigned char>::value; 
    bool ok2 = std::is_same<int_type, unsigned int>::value;
    bool ok3 = std::is_same<long_type, volatile unsigned long>::value;
 
    std::cout << std::boolalpha
    << "char_type is 'unsigned char'?          : " << ok1 << '\n'
    << "int_type  is 'unsigned int'?           : " << ok2 << '\n'
    << "long_type is 'volatile unsigned long'? : " << ok3 << '\n';
}

Output: 

char_type is 'unsigned char'?          : true
int_type  is 'unsigned int'?           : true
long_type is 'volatile unsigned long'? : true

[編集] も参照してください

(C++11)
型が算術型を締結しているかどうかを確認する
Original:
checks if a type is signed arithmetic type
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(クラステンプレート) [edit]
(C++11)
タイプかどうかをチェックするには、符号なし算術型である
Original:
checks if a type is unsigned arithmetic type
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(クラステンプレート) [edit]
(C++11)
与えられた整数型は符号付きになります
Original:
makes the given integral type signed
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(クラステンプレート) [edit]
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