std::basic_string::assign

 

C++

Language

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

 

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

char_traits

 

std::basic_string

Member functions

basic_string::basic_string

basic_string::operator=

basic_string::assign

basic_string::get_allocator

Element access

basic_string::at

basic_string::operator[]

basic_string::front (C++11)

basic_string::back (C++11)

basic_string::data

basic_string::c_str

Iterators

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)

Capacity

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)

Operations

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

Search

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

Constants

basic_string::npos

Non-member functions

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 classes

hash<std::string> hash<std::wstring> hash<std::u32string> hash<std::u16string> (C++11)

 

basic_string& assign( size_type count, CharT ch );	(1)
basic_string& assign( const basic_string& str );	(2)
basic_string& assign( const basic_string& str,                       size_type pos,                       size_type count );	(3)
basic_string& assign( basic_string&& str );	(4)	(since C++11)
basic_string& assign( const CharT* s,                       size_type count );	(5)
basic_string& assign( const CharT* s );	(6)
template< class InputIterator > basic_string& assign( InputIterator first, InputIterator last );	(7)
basic_string& assign( std::initializer_list<CharT> ilist );	(8)	(since C++11)

Replaces the contents of the string.

1) Replaces the contents with count copies of charactor ch

2) Replaces the contents with a copy of str

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

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

5) Replaces the contents with the first count characters of character string pointed to by s. s can contain null characters.

6) Replaces the contents with those of null-terminated character string pointed to by s. The length of the string is determined by the first null character.

7) Replaces the contents with copies of the characters in the range [first, last)

8) Replaces the contents with those of the initializer list ilist.

Parameters

count	-	size of the resulting string
ch	-	value to initialize characters of the string with
first, last	-	range to copy the characters from
str	-	string to be used as source to initialize the characters with
s	-	pointer to a character string to use as source to initialize the string with
init	-	initializer list to initialize the characters of the string with

Return value

*this

Complexity

1) linear in count

2) linear in size of str

3) linear in count

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

5) linear in count

6) linear in size of s

7) linear in distance between first and last

8) linear in size of init

See also

(constructor)	constructs a basic_string (public member function)
operator=	assigns values to the string (public member function)