std::char_traits<CharT>::copy

 

C++

Language

Standard Library Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

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 char_type* copy( char_type* dest, const char_type* src, std::size_t count );		(until C++20)
static constexpr char_type* copy( char_type* dest, const char_type* src, std::size_t count );		(since C++20)

Copies count character from character string pointed to by src to character string pointed to by dest.

Formally, for each i in [0, count), performs assign(src[i], dest[i]).

The behavior is undefined if copied character ranges overlap, i.e. src is in [dest, dest + count).

Parameters

dest	-	pointer to a character string to copy to
src	-	pointer to a character string to copy from
count	-	the number of characters to copy

Return value

dest

Exceptions

(none)

Complexity

Linear.

See also

assign [static]

assigns a character (public static member function)