std::basic_string

 

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)

 

Defined in header <string>
template<     class CharT,     class Traits = std::char_traits<CharT>,     class Allocator = std::allocator<CharT> > class basic_string;

La classe template basic_string negozi e manipola sequenze di caratteri simili a oggetti (vale a dire, gli oggetti per i quali una specializzazione di std::char_traits o compatibili traits della classe è previsto).

Original:

The class template basic_string stores and manipulates sequences of char-like objects (that is, objects for which a specialization of std::char_traits or compatible traits class is provided).

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Gli elementi di un basic_string vengono memorizzati in modo contiguo, che è, per un basic_string s, &*(s.begin() + n) == &*s.begin() + n per ogni n in [0, s.size()), o, equivalentemente, un puntatore s[0] può essere passato a funzioni che prevedono un puntatore al primo elemento di un array charT[]. (dal C++11)

Original:

The elements of a basic_string are stored contiguously, that is, for a basic_string s, &*(s.begin() + n) == &*s.begin() + n for any n in [0, s.size()), or, equivalently, a pointer to s[0] can be passed to functions that expect a pointer to the first element of a charT[] array. (dal C++11)

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Diverse specializzazioni per i tipi di caratteri comuni sono:

Original:

Several specializations for common character types are provided:

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Defined in header <string>
Tipo Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
std::string	std::basic_string<char>
std::wstring	std::basic_string<wchar_t>
std::u16string	std::basic_string<char16_t>
std::u32string	std::basic_string<char32_t>

Membri tipi

Membro tipo Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
traits_type	Traits
value_type	Traits::char_type
allocator_type	Allocator
size_type	Unsigned tipo integrale (di solito size_t) Original: Unsigned integral type (usually size_t) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
difference_type	Signed integer type (usually ptrdiff_t)
reference	Allocator::reference (C fino + 11) value_type& (dal C++11)
const_reference	Allocator::const_reference (C fino + 11) const value_type& (dal C++11)
pointer	Allocator::pointer (C fino + 11) std::allocator_traits<Allocator>::pointer (dal C++11)
const_pointer	Allocator::const_pointer (C fino + 11) std::allocator_traits<Allocator>::const_pointer (dal C++11)
iterator	RandomAccessIterator
const_iterator	Costante iteratore ad accesso casuale Original: Constant random access iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
reverse_iterator	std::reverse_iterator<iterator>
const_reverse_iterator	std::reverse_iterator<const_iterator>

Membri funzioni

(constructor)	costruisce un basic_string Original: constructs a basic_string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
operator=	assegna valori alla stringa Original: assigns values to the string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
assign	assegnare i caratteri in una stringa Original: assign characters to a string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
get_allocator	restituisce l'allocatore associato Original: returns the associated allocator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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.
at	accedere a carattere specificato con verifica dei limiti Original: access specified character with bounds checking The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
operator[]	accedere a carattere specificato Original: access specified character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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. (membro pubblico funzione)
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. (membro pubblico funzione)
data	restituisce un puntatore al primo carattere di una stringa Original: returns a pointer to the first character of a string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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. (membro pubblico funzione)
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.
begin cbegin (C++11)	restituisce un iteratore all'inizio Original: returns an iterator to the beginning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
end cend (C++11)	restituisce un iteratore fino alla fine Original: returns an iterator to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
rbegin crbegin (C++11)	restituisce un iteratore inverso all'inizio Original: returns a reverse iterator to the beginning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
rend crend (C++11)	restituisce un iteratore inverso alla fine Original: returns a reverse iterator to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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.
empty	controlla se la stringa è vuota Original: checks whether the string is empty The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
size length	returns the number of characters (membro pubblico funzione)
max_size	restituisce il numero massimo di caratteri Original: returns the maximum number of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
reserve	riserve di stoccaggio Original: reserves storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
capacity	restituisce il numero di caratteri che possono essere tenuti in deposito attualmente assegnate Original: returns the number of characters that can be held in currently allocated storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
shrink_to_fit (C++11)	riduce l'utilizzo della memoria da liberare la memoria inutilizzata Original: reduces memory usage by freeing unused memory The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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.
clear	cancella il contenuto Original: clears the contents The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
insert	Inserti caratteri Original: inserts characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
erase	removes characters (membro pubblico funzione)
push_back	aggiunge un carattere alla fine Original: appends a character to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
pop_back (C++11)	rimuove l'ultimo carattere Original: removes 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. (membro pubblico funzione)
append	aggiunge caratteri alla fine Original: appends characters to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
operator+=	aggiunge caratteri alla fine Original: appends characters to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
compare	confronta due stringhe Original: compares two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
replace	sostituisce ogni occorrenza di caratteri specificati Original: replaces every occurrence of specified characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
substr	restituisce una sottostringa Original: returns a substring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
copy	copie caratteri Original: copies characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
resize	cambia il numero di caratteri memorizzati Original: changes the number of characters stored The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
swap	swap il contenuto Original: swaps the contents The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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.
find	individuare caratteri della stringa Original: find characters in the string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
rfind	trovare l'ultima occorrenza di una sottostringa Original: find the last occurrence of a substring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
find_first_of	trovare prima occorrenza di caratteri Original: find first occurrence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
find_first_not_of	trovare prima assenza di caratteri Original: find first absence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
find_last_of	trovare ultima occorrenza di caratteri Original: find last occurrence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
find_last_not_of	trovare assenza ultima di caratteri Original: find last absence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
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.
npos [statico]	valore speciale. Il significato esatto dipende dal contesto Original: special value. The exact meaning depends on the context The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (pubblico membro statico costante)

Non membri funzioni

operator+	concatena due stringhe o una stringa e un carattere Original: concatenates two strings or a string and a char The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)
operator== operator!= operator< operator> operator<= operator>=	confronta lessicograficamente due stringhe Original: lexicographically compares two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)
std::swap(std::basic_string)	specializzata l'algoritmo std::swap Original: specializes the std::swap algorithm The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)
Ingresso / uscita Original: Input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
operator<< operator>>	esegue flusso di I / O sulle stringhe Original: performs stream I/O on strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello)
getline	leggere i dati da un I / O corrente in una stringa Original: read data from an I/O stream into a string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
Conversioni numeriche Original: Numeric conversions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
stoi stol stoll (C++11) (C++11) (C++11)	converte una stringa in un numero intero con segno Original: converts a string to an signed integer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
stoul stoull (C++11) (C++11)	converte una stringa in un numero intero senza segno Original: converts a string to an unsigned integer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
stof stod stold (C++11) (C++11) (C++11)	converte una stringa in un valore in virgola mobile Original: converts a string to an floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
to_string (C++11)	converte un valore in virgola mobile a integrale o string Original: converts an integral or floating point value to string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
to_wstring (C++11)	converte un valore in virgola mobile a integrale o wstring Original: converts an integral or floating point value to wstring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)

Helper classi

std::hash<std::string> std::hash<std::u16string> std::hash<std::u32string> std::hash<std::wstring> (C++11) (C++11) (C++11) (C++11)	sostegno hash per stringhe Original: hash support for strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe modello di specializzazione)