Function isAnyCharRequiredQuoting

cpp/cppsdk/jsoncpp.cpp:4356–4366

JSONCPP_STRING valueToString(bool value) { return value ? "true" : "false"; }

static bool isAnyCharRequiredQuoting(char const* s, size_t n) {
  assert(s || !n);

  char const* const end = s + n;
  for (char const* cur = s; cur < end; ++cur) {
    if (*cur == '\\' || *cur == '\"' || *cur < ' ' ||
        static_cast<unsigned char>(*cur) < 0x80)
      return true;
  }
  return false;
}

static unsigned int utf8ToCodepoint(const char*& s, const char* e) {
  const unsigned int REPLACEMENT_CHARACTER = 0xFFFD;