std::basic_string::c_str

 

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* c_str()const;

Restituisce un puntatore a una terminazione null array di caratteri con i dati equivalenti a quelli memorizzati nella stringa. Il puntatore è tale che l'intervallo [c_str(); c_str() + size()] è valido e valori in esso corrispondono ai valori memorizzati nella stringa con un carattere nullo aggiuntivo dopo l'ultima posizione.

Original:

Returns a pointer to a null-terminated character array with data equivalent to those stored in the string. The pointer is such that the range [c_str(); c_str() + size()] is valid and the values in it correspond to the values stored in the string with an additional null character after the last position.

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Note

Il puntatore ottenuto da c_str() possono essere trattati come un puntatore a una stringa con terminazione null di caratteri se l'oggetto stringa non contiene altri caratteri nulli.

Original:

The pointer obtained from c_str() may only be treated as a pointer to a null-terminated character string if the string object does not contain other null characters.

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La scrittura della matrice di caratteri si accede tramite c_str() è un comportamento indefinito.

Original:

Writing to the character array accessed through c_str() is undefined behavior.

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

Original:

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

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Parametri

(Nessuno)

Original:

(none)

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Valore di ritorno

Puntatore alla terminazione Null array di caratteri in modo tale che per ogni data()[i]== operator[](i)i in [0, size()]. (fino al c++11)

Original:

Pointer to the null-terminated character array such that data()[i]== operator[](i) for every i in [0, size()]. (fino al c++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 (metodo pubblico)
back (C++11)	accede all'ultimo carattere (metodo pubblico)
data	restituisce un puntatore al primo carattere di una stringa (metodo pubblico)