Method StringRef

unittests/catch.hpp:9653–9655

namespace Catch {
    StringRef::StringRef( char const* rawChars ) noexcept
    : StringRef( rawChars, static_cast<StringRef::size_type>(std::strlen(rawChars) ) )
    {}

    StringRef::operator std::string() const {
        return std::string( m_start, m_size );