c_cpp 不区分大小写的字符串比较

Posted 2021-05-14

// Case-insensitive string comparison
inline bool iequal(char c1, char c2) { return std::toupper(c1) == std::toupper(c2); }
bool iequals(const std::string& str1, const std::string& str2) {
  return  ((str1.size() == str2.size()) && std::equal(str1.begin(), str1.end(), str2.begin(), iequal));
}