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std::basic_string::operator= - cppreference.com

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basic_string& operator=( const basic_string& str );

 (1)

basic_string& operator=( basic_string&& str );

 (2) (dal C++11)

basic_string& operator=( const CharT* s );

 (3)

basic_string& operator=( CharT ch );

 (4)

basic_string& operator=( std::initializer_list<CharT> ilist );

 (5) (dal C++11)

Sostituisce il contenuto della stringa.

Original:

Replaces the contents of the string.

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1)

Sostituisce il contenuto con una copia di str

Original:

Replaces the contents with a copy of str

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2)

Sostituisce il contenuto con quelli della str usando la semantica spostamento. str è in stato indefinito dopo l'operazione.

Original:

Replaces the contents with those of str using move semantics. str is in undefined state after the operation.

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3)

Sostituisce il contenuto con quelli della stringa con terminazione null di caratteri puntata da s.

Original:

Replaces the contents with those of null-terminated character string pointed to by s.

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4)

Sostituisce il contenuto con ch carattere

Original:

Replaces the contents with character ch

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8)

Sostituisce il contenuto con quelli della lista di inizializzazione ilist.

Original:

Replaces the contents with those of the initializer list ilist.

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Parametri

ch -

valore per inizializzare i caratteri della stringa con

Original:

value to initialize characters of the string with

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str -

stringa da utilizzare come sorgente per inizializzare la stringa con

Original:

string to be used as source to initialize the string with

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s -

puntatore ad una stringa null-termanated uso di caratteri
to come fonte per inizializzare la stringa con

Original:

pointer to a null-termanated character string
to use as source to initialize the string with

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init -

inizializzatore lista per inizializzare la stringa con

Original:

initializer list to initialize the string with

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Valore di ritorno

*this

Complessità

1)

lineare in dimensione str

Original:

linear in size of str

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2)

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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3)

lineare in dimensione s

Original:

linear in size of s

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4)

costante.

Original:

constant.

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5)

lineare in dimensione init

Original:

linear in size of init

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Esempio

Vedi anche