Method contains

src/thundersvm/util/log.cpp:901–907

            }

            bool Str::contains(const char* str, char c) {
                for (; *str; ++str) {
                    if (*str == c)
                        return true;
                }
                return false;
            }

            char* Str::convertAndAddToBuff(std::size_t n, int len, char* buf, const char* bufLim, bool zeroPadded) {
                char localBuff[10] = "";