Method find

src/fl/stl/basic_string.cpp.hpp:518–523

// ======= FIND =======

fl::size basic_string::find(const char& value) const {
    for (fl::size i = 0; i < mLength; ++i) {
        if (c_str()[i] == value) return i;
    }
    return npos;
}

fl::size basic_string::find(const char* substr) const {
    if (!substr) return npos;