url::has_query

Return true if a query is present.

bool
has_query() const;

This function returns true if this contains a query. An empty query is distinct from having no query.

assert( url_view( "/sql?id=42&col=name&page-size=20" ).has_query() );

Constant.

Throws nothing.

query           = *( pchar / "/" / "?" )

query-param     = key [ "=" value ]
query-params    = [ query-param ] *( "&" query-param )