std::basic_string::basic_string

 

C++

Language

Standard library headers

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)

 

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)	(since C++11)
basic_string( basic_string&& other )	(8)	(since C++11)
basic_string( basic_string&& other, const Allocator& alloc );	(8)	(since C++11)
basic_string( std::initializer_list<CharT> init,               const Allocator& alloc = Allocator() );	(9)	(since C++11)

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

1) Default constructor. Constructs empty string.

2) Constructs the string with count copies of character ch.

3) 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.

4) 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.

5) 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.

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.

Parameters

alloc	-	allocator to use for all memory allocations of this string
count	-	size of the resulting string
ch	-	value to initialize the string with
first, last	-	range to copy the characters from
s	-	pointer to a character string to use as source to initialize the string with
other	-	another string to use as source to initialize the string with
init	-	initializer list to initialize the string with
Type requirements
- InputIt must meet the requirements of InputIterator.

Complexity

1) constant

2-4) linear in count

5) linear in length of s

6) linear in distance between first and last

7) linear in size of other

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

9) linear in size of init

See also

assign	assign characters to a string (public member function)
operator=	assigns values to the string (public member function)