HelenOS sources

substr            647 uspace/lib/cpp/src/__bits/test/string.cpp         auto substr1 = str.substr(0, 4);
substr            648 uspace/lib/cpp/src/__bits/test/string.cpp         auto substr2 = str.substr(1, 3);
substr            649 uspace/lib/cpp/src/__bits/test/string.cpp         auto substr3 = str.substr(3);