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##### basic_static_string::replace (4 of 14 overloads)

Replace a part of the string.

###### Synopsis

    template<
        typename T>
    constexpr basic_static_string&
    replace(
        basic_static_string::size_type pos1,
        basic_static_string::size_type n1,
        const T& t,
        basic_static_string::size_type pos2,
        basic_static_string::size_type n2 = basic_static_string::npos);

###### Description

Constructs a temporary `string_view_type` object `sv` from `t`, and replaces `rcount` characters starting at index `pos1` with those of `sv.substr(pos2, n2)`, where `rcount` is `std::min(n1, size() - pos)`.

###### Exception Safety

Strong guarantee.

###### Remarks

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

###### Template Parameters

Type | Description
--- | ---
`T` | The type of the object to convert.

###### Constraints

`std::is_convertible<const T&, string_view>::value && !stdis_convertible<const T&, const CharT*>::value && !stdis_convertible<const T&, const basic_static_string&>::value`.

###### Return Value

`*this`

###### Parameters

Name | Description
--- | ---
`pos1` | The index to replace at.
`n1` | The number of characters to replace.
`t` | The object to replace with.
`pos2` | The index to begin the substring.
`n2` | The length of the substring. The default argument for this parameter is `npos`.

###### Exceptions

Type | Thrown On
--- | ---
`std::length_error` | `size() + (std::min(n2, sv.size()) - rcount) > max_size()`
`std::out_of_range` | `pos1 > size()`
`std::out_of_range` | `pos2 > sv.size()`