basic_static_string::substr

Return a substring.

BOOST_STATIC_STRING_CPP14_CONSTEXPR basic_static_string
substr(
    size_type pos = 0,
    size_type count = npos) const;

Returns a substring of the string.

Strong guarantee.

A string object containing the characters [data() + pos, std::min(count, size() - pos)).

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

Type	Thrown On
`std::out_of_range`	`pos > size()`