std::basic_string::basic_string

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C++ Standard Library
Language 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
Narrow character strings Wide character 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 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)

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 = 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 InputIterator > basic_string( InputIterator first, InputIterator last,               const Allocator& alloc = Allocator() );	(6)
basic_string( const basic_string& other );	(7)
basic_string( const basic_string& other, const Allocator& alloc );	(7)	(C++11 feature)
basic_string( basic_string&& other )	(8)	(C++11 feature)
basic_string( basic_string&& other, const Allocator& alloc );	(8)	(C++11 feature)
basic_string( std::initializer_list<CharT> init,               const Allocator& alloc = Allocator() );	(9)	(C++11 feature)

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.

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.

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.

Contents 1 Parameters 2 Complexity 3 Example 4 See also

[edit] 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

[edit] 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

[edit] Example

This section is incomplete

[edit] See also

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