std::basic_string::data

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

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

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

basic_string::at

basic_string::operator[]

basic_string::front (C++11)

basic_string::back (C++11)

basic_string::data

basic_string::c_str

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

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)

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

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)

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

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

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

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

Non membri funzioni 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.

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)

Helper classi 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.

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

 

const CharT* data() const;

Restituisce il puntatore alla matrice sottostante che funge da deposito di caratteri.

Original:

Returns pointer to the underlying array serving as character storage.

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Se empty() ritorna false, il puntatore è tale che l'intervallo [data(); data() + size()) è valido e valori in esso corrispondono ai valori memorizzati nella stringa. Se empty() restituisce true, il puntatore non è un puntatore nullo che non devono essere dereferenced. (C fino + 11)

Original:

If empty() returns false, the pointer is such that the range [data(); data() + size()) is valid and the values in it correspond to the values stored in the string. If empty() returns true, the pointer is a non-null pointer that should not be dereferenced. (C fino + 11)

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Il puntatore è tale che l'intervallo [data(); data() + size()] è valido e valori in esso corrispondono ai valori memorizzati nella stringa (compreso il carattere nullo aggiuntiva) anche quando empty() ritorna true. (dal C++11)

Original:

The pointer is such that the range [data(); data() + size()] is valid and the values in it correspond to the values stored in the string (including the additional null character) even when empty() returns true. (dal C++11)

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Note

La scrittura della matrice di caratteri si accede tramite data è un comportamento indefinito.

Original:

Writing to the character array accessed through data is undefined behavior.

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Il puntatore ottenuto da data() non dovrebbe essere considerata valida dopo qualsiasi non-const operazione sulla stringa.

Original:

The pointer obtained from data() should not be considered valid after any non-const operation on the string.

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Dal momento che C + +11, data() c_str() e svolgono la stessa funzione.

Original:

Since C++11, data() and c_str() perform the same function.

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Parametri

(Nessuno)

Original:

(none)

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Valore di ritorno

Puntatore alla memoria carattere di fondo in modo tale che per ogni data()[i] == operator[](i) i in [0, size()). (C fino + 11)

Original:

Pointer to the underlying character storage such that data()[i] == operator[](i) for every i in [0, size()). (C fino + 11)

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Puntatore alla memoria carattere di fondo in modo tale che per ogni data() + i == &operator[](i) i in [0, size()]. (dal C++11)

Original:

Pointer to the underlying character storage such that data() + i == &operator[](i) for every i in [0, size()]. (dal C++11)

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Complessità

Costante.

Original:

Constant.

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Eccezioni

noexcept specification:  

noexcept

  (dal C++11)

Vedi anche

front (C++11)	accede al primo carattere Original: accesses the first character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
back (C++11)	accede l'ultimo carattere Original: accesses the last character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
c_str	restituisce un valore non modificabile versione standard C matrice di carattere della stringa Original: returns a non-modifiable standard C character array version of the string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)