std::char_traits<char>::assign, std::char_traits<wchar_t>::assign, std::char_traits<char8_t>::assign, std::char_traits<char16_t>::assign, std::char_traits<char32_t>::assign

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

basic_string_view (C++17)

char_traits

 

std::char_traits

Member functions

char_traits::assign

char_traits::eqchar_traits::lt

char_traits::move

char_traits::copy

char_traits::compare

char_traits::length

char_traits::find

char_traits::to_char_type

char_traits::to_int_type

char_traits::eq_int_type

char_traits::eof

char_traits::not_eof

 

static void assign( char_type& c1, const char_type& c2 );	(1)	(noexcept since C++11) (constexpr since C++17)
static char_type* assign( char_type* ptr, std::size_t count, char_type c2 );	(2)	(constexpr since C++20)

1) Assigns c2 to c1, behaves identically to c1 = c2.

2) Assigns c2 to each character in count characters in the character sequence pointed to by ptr.

See CharTraits for the general requirements on character traits for X::assign.

Parameters

c1	-	character to assign to
c2	-	character value to assign
ptr	-	pointer to a character sequence to assign to
count	-	the length of the character sequence

Return value

1) (none)

2) ptr

Complexity

1) Constant.

2) Linear in count.