名前空間
変種
操作

std::getline

提供: cppreference.com
< cpp‎ | string‎ | basic string


 
 
ストリングスライブラリ
NULLで終わる文字列
Original:
Null-terminated strings
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バイト文字列
文字列をマルチバイト
ワイド文字列
クラス
Original:
Classes
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basic_string
char_traits
 
std::basic_string
メンバ関数
Original:
Member functions
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basic_string::basic_string
basic_string::operator=
basic_string::assign
basic_string::get_allocator
要素アクセスの循環参照を解除するために使用されている
Original:
Element access
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basic_string::at
basic_string::operator[]
basic_string::front(C++11)
basic_string::back(C++11)
basic_string::data
basic_string::c_str
イテレータ
Original:
Iterators
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basic_string::begin
basic_string::cbegin

(C++11)
basic_string::end
basic_string::cend

(C++11)
basic_string::rbegin
basic_string::crbegin

(C++11)
basic_string::rend
basic_string::crend

(C++11)
容量
Original:
Capacity
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basic_string::empty
basic_string::size
basic_string::length
basic_string::max_size
basic_string::reserve
basic_string::capacity
basic_string::shrink_to_fit(C++11)
操作
Original:
Operations
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basic_string::clear
basic_string::insert
basic_string::erase
basic_string::push_back
basic_string::pop_back(C++11)
basic_string::append
basic_string::operator+=
basic_string::compare
basic_string::replace
basic_string::substr
basic_string::copy
basic_string::resize
basic_string::swap
検索
Original:
Search
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basic_string::find
basic_string::rfind
basic_string::find_first_of
basic_string::find_first_not_of
basic_string::find_last_of
basic_string::find_last_not_of
定数
Original:
Constants
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basic_string::npos
非メンバ関数
Original:
Non-member functions
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operator+
operator==
operator!=
operator<
operator>
operator<=
operator>=
swap(std::basic_string)
operator<<
operator>>
getline
stoi
stol
stoll
(C++11)
(C++11)
(C++11)
stoul
stoull
(C++11)
(C++11)
stof
stod
stold
(C++11)
(C++11)
(C++11)
to_string(C++11)
to_wstring(C++11)
ヘルパークラス
Original:
Helper classes
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hash<std::string>
hash<std::wstring>
hash<std::u32string>
hash<std::u16string>
(C++11)
 
Defined in header <string>
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>& input,
                                           std::basic_string<CharT,Traits,Allocator>& str,

                                           CharT delim );
(1)
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>&& input,
                                           std::basic_string<CharT,Traits,Allocator>& str,

                                           CharT delim );
(1) (C + + 11以来)
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>& input,

                                           std::basic_string<CharT,Traits,Allocator>& str );
(2)
template< class CharT, class Traits, class Allocator >

std::basic_istream<CharT,Traits>& getline( std::basic_istream<CharT,Traits>&& input,

                                           std::basic_string<CharT,Traits,Allocator>& str );
(2) (C + + 11以来)
getline入力ストリームから文字を読み込み、文字列にそれらを配置します
Original:
getline reads characters from an input stream and places them into a string:
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1)
UnformattedInputFunctionが影響されない点を除いて、input.gcount()として動作します。構築し、監視オブジェクトをチェックした後、次の手順を実行します
Original:
Behaves as UnformattedInputFunction, except that input.gcount() is not affected. After constructing and checking the sentry object, performs the following:
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1)
str.erase()呼び出します
Original:
Calls str.erase()
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2)
次のいずれかが発生する(表示されている順序でチェックされる)までinputstrを付加そこから文字を抽出します
Original:
Extracts characters from input and appends them to str until one of the following occurs (checked in the order listed)
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a)
inputでend-of-file状態、ケース内、getlineセットeofbitとリターン.
Original:
end-of-file condition on input, in which case, getline sets eofbit and returns.
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b)
次の使用可能な入力文字は、区切り文字がdelimから抽出された場合で、Traits::eq(c, delim)、によってテスト、inputですが、strに追加されません.
Original:
the next available input character is delim, as tested by Traits::eq(c, delim), in which case the delimiter character is extracted from input, but is not appended to str.
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c)
str.max_size()文字は大文字でgetlineセットfailbitと戻り、保存されていた.
Original:
str.max_size() characters have been stored, in which case getline sets failbit and returns.
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3)
文字が何らかの理由(NULLすらない捨て区切り文字)、getlineセットfailbitとリターンのために抽出されなかった場合は.
Original:
If no characters were extracted for whatever reason (not even the discarded delimiter), getline sets failbit and returns.
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2)
getline(input, str, input.widen(’\n’))と同じ、つまり、デフォルトの区切り文字は行末文字です.
Original:
Same as getline(input, str, input.widen(’\n’)), that is, the default delimiter is the endline character.
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[編集] パラメータ

input -
からデータを取得するためのストリーム
Original:
the stream to get data from
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str -
にデータを格納する文字列
Original:
the string to put the data into
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delim -
区切り文字
Original:
the delimiter character
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[編集] 値を返します

input

[編集]

次のコードは、その名前を使用してそれらを迎えた後、自分の名前の入力をユーザーに要求します.
Original:
The following code asks the user for their name, then greets them using that name.
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#include <string>
#include <iostream>
 
int main()
{
    std::string name;
    std::cout << "What is your name? ";
    std::getline(std::cin, name);
    std::cout << "Hello " << name << ", nice to meet you.";
}

Possible output:

What is your name? John Q. Public
Hello John Q. Public, nice to meet you.