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std::basic_regex<CharT,Traits>::operator= - cppreference.com

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Defined in header <regex>

basic_regex& operator=( const basic_regex& other );

 (1) (since C++11)

basic_regex& operator=( basic_regex&& other ) noexcept;

 (2) (since C++11)

basic_regex& operator=( const CharT* ptr );

 (3) (since C++11)

basic_regex& operator=( std::initializer_list<CharT> il );

 (4) (since C++11)

template< class ST, class SA > basic_regex& operator=( const std::basic_string<CharT,ST,SA>& p );

 (5) (since C++11)

Assigns the contents.

1) Copy assignment operator. Assigns the contents of other. Equivalent to assign(other);.

2) Move assignment operator. Assigns the contents of other using move semantics. other is in valid, but unspecified state after the operation. Equivalent to assign(other);.

3) Assigns a null-terminated character string pointed to by ptr. Equivalent to assign(ptr);.

4) Assigns characters contained in initializer list il. Equivalent to assign(il);.

5) Assigns the contents of the string p. Equivalent to assign(p);.

Parameters

other - another regex object
ptr - pointer to a null-terminated character string
il - initializer list containing characters to assign
p - string containing characters to assign

Return value

*this

Exceptions

1) May throw implementation-defined exceptions.

3-5) std::regex_error if the supplied regular expression is not valid. The object is not modified in that case.

See also