bool UtilAll::StringToInt32()

in src/common/UtilAll.cpp [179:197]

• 17 lines of code
• 9 McCabe index (conditional complexity)

bool UtilAll::StringToInt32(const std::string& str, int32_t& out) {
  out = 0;
  if (str.empty()) {
    return false;
  }

  char* end = NULL;
  errno = 0;
  long l = strtol(str.c_str(), &end, 10);
  /* Both checks are needed because INT_MAX == LONG_MAX is possible. */
  if (l > INT_MAX || (errno == ERANGE && l == LONG_MAX))
    return false;
  if (l < INT_MIN || (errno == ERANGE && l == LONG_MIN))
    return false;
  if (*end != '\0')
    return false;
  out = l;
  return true;
}