string::erase (1 of 3 overloads)

Erase characters from the string.

string&
erase(
    std::size_t pos = 0,
    std::size_t count = npos);

Erases num characters from the string, starting at pos. num is determined as the smaller of count and size() - pos.

Strong guarantee.

All references, pointers, or iterators referring to contained elements are invalidated. Any past-the-end iterators are also invalidated.

*this

Name	Description
`pos`	The index to erase at. The default argument for this parameter is `0`.
`count`	The number of characters to erase. The default argument for this parameter is `npos`.

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