string::subview

`string::subview`

Return a view.

string_view
subview(
    std::size_t pos,
    std::size_t count = string::npos) const; (1)

string_view
subview() const noexcept; (2)

Returns a view of a substring.

Strong guarantee.

this->subview().substr(pos, count)

string_view(this->data(), this->size()).

Name Description

Name	Description
`pos`	The index to being the substring at. The default argument for this parameter is `0`.
`count`	The length of the substring. The default argument for this parameter is `npos`.

pos

The index to being the substring at. The default argument for this parameter is 0.

count

The length of the substring. The default argument for this parameter is npos.

Type Thrown On

Type	Thrown On
`boost::system::system_error`	`pos > size()`.

boost::system::system_error

pos > size().