std::basic_string::operator[]

 

C++

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Espressioni regolari(C++11)

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Stringhe libreria

Null-stringhe terminate Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Byte stringhe

Multibyte stringhe

Stringhe larghe

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

basic_string

char_traits

 

std::basic_string

Membri funzioni 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.

basic_string::basic_string

basic_string::operator=

basic_string::assign

basic_string::get_allocator

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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

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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)

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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)

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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

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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

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

basic_string::npos

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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)

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hash<std::string> hash<std::wstring> hash<std::u32string> hash<std::u16string> (C++11)

 

reference       operator[]( size_type pos );
const_reference operator[]( size_type pos )const;

Restituisce un riferimento al personaggio di pos posizione specificata. Nessun controllo dei limiti viene eseguito.

Original:

Returns a reference to the character at specified location pos. No bounds checking is performed.

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If pos==size(),

• La versione const restituisce un riferimento al personaggio con il valore CharT() (il carattere null). (fino al c++11)

  Original:

  The const version returns a reference to the character with value CharT() (the null character). (fino al c++11)

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• Entrambe le versioni restituisce un riferimento al personaggio con il valore CharT() (il carattere null). Modifica del carattere null attraverso la non-const risultati di riferimento a un comportamento indefinito. (dal C++11)

  Original:

  Both versions returns a reference to the character with value CharT() (the null character). Modifying the null character through non-const reference results in undefined behavior. (dal C++11)

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Parametri

pos

-

posizione del carattere da restituire Original: position of the character to return The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

riferimento al carattere richiesto

Original:

reference to the requested character

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Complessità

Constant

Original:

Constant

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Vedi anche

at	accede al carattere richiesto con controllo dei limiti (metodo pubblico)