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

From cppreference.com

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)
Diagnostics library
Memory management library
Metaprogramming library(C++11)
General utilities library
Containers library
Iterators library
Ranges library(C++20)
Algorithms library
Strings library
Text processing library
Numerics library
Date and time library
Input/output library
Filesystem library(C++17)
Concurrency support library(C++11)
Execution control library(C++26)
Technical specifications
Symbols index
External libraries

staticvoid 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) Assignsc2 toc1, behaves identically toc1= c2.

2) Assignsc2 to each character incount characters in the character sequence pointed to byptr.

SeeCharTraits for the general requirements on character traits forX::assign.

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

1) (none)

2)ptr

1) Constant.

2) Linear incount.

Movatterモバイル変換