* \param sn Scope name.
* \param fn File name, in which the scope is located.
* \param ln Line number in the file.
+ * \param t Scope name type.
*/
sentry(string_literal const& sn, string_literal const& fn, unsigned int ln, scope_entry::scope_name_type t = scope_entry::general) BOOST_NOEXCEPT :
m_Entry(sn, fn, ln, t)