set_scheme

Set the scheme

Synopsis


                static_url&
set_scheme(
    string_view s);

Declared in file <boost/url/static_url.hpp> at line 345

Description

The scheme is set to the specified string, which must contain a valid scheme without any trailing colon (':'). Note that schemes are case-insensitive, and the canonical form is lowercased.

Example


assert( url( "http://www.example.com" ).set_scheme( "https" ).scheme_id() == scheme::https );

Complexity

Linear in `this->size() + s.size()`.

Exception Safety

Strong guarantee. Calls to allocate may throw. Exceptions thrown on invalid input.

BNF


scheme        = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )

Specification

3.1. Scheme (rfc3986)