string::find_first

`string::find_first_of`

Find the first character present in the specified string.

std::size_t
find_first_of(
    string_view sv,
    std::size_t pos = 0) const noexcept;

Search from pos onward for the first character in this string that is equal to any of the characters of sv.

Linear in size() + sv.size().

No-throw guarantee.

The index of the found character, or npos if none exists.

Name Description

Name	Description
`sv`	The characters to search for.
`pos`	The index to start searching at.

sv

The characters to search for.

pos

The index to start searching at.