# std::experimental::basic_string_view<CharT,Traits>::copy

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< cpp‎ | experimental‎ | basic string view

size_type copy( CharT* dest, size_type count, size_type pos = 0) const; |  | (library fundamentals TS)

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

substr | returns a substring (public member function)

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