std::basic_string::basic_string

<metanoindex/>

 

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)

 

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explicit basic_string( const Allocator& alloc = Allocator() );	(1)
basic_string( size_type count, CharT ch, const Allocator& alloc = Allocator() );	(2)
basic_string( const basic_string& other, size_type pos, size_type count = std::basic_string::npos, const Allocator& alloc = Allocator() );	(3)
basic_string( const CharT* s, size_type count, const Allocator& alloc = Allocator() );	(4)
basic_string( const CharT* s, const Allocator& alloc = Allocator() );	(5)
template< class InputIt > basic_string( InputIt first, InputIt last, const Allocator& alloc = Allocator() );	(6)
basic_string( const basic_string& other );	(7)
basic_string( const basic_string& other, const Allocator& alloc );	(7)	(dal C++11)
basic_string( basic_string&& other )	(8)	(dal C++11)
basic_string( basic_string&& other, const Allocator& alloc );	(8)	(dal C++11)
basic_string( std::initializer_list<CharT> init, const Allocator& alloc = Allocator() );	(9)	(dal C++11)

Costruisce nuova stringa da una varietà di fonti di dati ed eventualmente utilizzando allocatore fornita dall'utente alloc.

Original:

Constructs new string from a variety of data sources and optionally using user supplied allocator alloc.

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1)

Costruttore di default. Costruisce una stringa vuota.

Original:

Default constructor. Constructs empty string.

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2)

Costruisce la stringa con copie count ch di carattere.

Original:

Constructs the string with count copies of character ch.

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3)

Costruisce la stringa con un [pos, pos+count) sottostringa di other. Se la sottostringa richiesto dura oltre la fine della stringa, o se count == npos, la sottostringa risultante è [pos, size()). Se pos >= other.size(), std::out_of_range viene gettato.

Original:

Constructs the string with a substring [pos, pos+count) of other. If the requested substring lasts past the end of the string, or if count == npos, the resulting substring is [pos, size()). If pos >= other.size(), std::out_of_range is thrown.

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4)

Costruisce la stringa con i caratteri count primi stringa di caratteri puntato da s. s può contenere caratteri nulli. s non deve essere un puntatore NULL.

Original:

Constructs the string with the first count characters of character string pointed to by s. s can contain null characters. s must not be a NULL pointer.

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5)

Costruisce la stringa con il contenuto della stringa con terminazione null di caratteri puntata da s. La lunghezza della stringa è determinata dal carattere nullo prima. s non deve essere un puntatore NULL.

Original:

Constructs the string with the contents of null-terminated character string pointed to by s. The length of the string is determined by the first null character. s must not be a NULL pointer.

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6) Constructs the string with the contents of the range [first, last).

7) Copy constructor. Constructs the string with the copy of the contents of other.

8) Move constructor. Constructs the string with the contents of other using move semantics.

9) Constructs the string with the contents of the initializer list init.

Parametri

alloc	-	allocatore da utilizzare per tutte le allocazioni di memoria di questa stringa Original: allocator to use for all memory allocations of this string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
count	-	dimensione della stringa risultante Original: size of the resulting string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ch	-	valore per inizializzare la stringa con Original: value to initialize the string with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
first, last	-	gamma di copiare i personaggi Original: range to copy the characters from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
s	-	puntatore a una stringa di caratteri use come fonte per inizializzare la stringa con Original: pointer to a character string to use as source to initialize the string with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
other	-	un'altra stringa da usare come sorgente per inizializzare la stringa con Original: another string to use as source to initialize the string with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
init	-	inizializzatore lista per inizializzare la stringa con Original: initializer list to initialize the string with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Type requirements
- InputIt must meet the requirements of InputIterator.

Complessità

1)

costante

Original:

constant

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2-4)

lineare in count

Original:

linear in count

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5) linear in length of s

6)

lineare di distanza tra first e last

Original:

linear in distance between first and last

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7)

lineare in dimensione other

Original:

linear in size of other

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8)

costante. Se alloc è dato e alloc != other.get_allocator(), quindi lineare.

Original:

constant. If alloc is given and alloc != other.get_allocator(), then linear.

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9)

lineare in dimensione init

Original:

linear in size of init

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Vedi anche

assign	assegna caratteri ad una stringa (metodo pubblico)
operator=	assegna valori ad una stringa (metodo pubblico)