W3cubDocs

/C++

std::basic_string_view::copy

size_type copy( CharT* dest,
                size_type count,
                size_type pos = 0) const;
(since C++17)

Copies the substring [pos, pos + rcount) to the character string pointed to by dest, where rcount is the smaller of count and size() - pos.

Parameters

dest - pointer to the destination character string
pos - position of the first character
count - requested substring length

Return value

Number of characters copied.

Exceptions

std::out_of_range if pos >= size().

Complexity

Linear in rcount.

See also

returns a substring
(public member function)

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/string/basic_string_view/copy