Could somebody please help me how to achieve that my function accepts only that argument types that the function can be called inside it?
I have a Logger class what can be started with a HardwareSerial object in in the setup() function of an arduino code. Then in the loop() I would like to call the Logger.print() function that should accepts only that arguments what HardwareSerial.print() can be called.
Here is my ugly and not working tries:
template <typename... ARGS>
size_t print(const ARGS &... args) {
if (serial != NULL) {
if (sizeof...(args) == 2) {
return this->serial->print(args[0], args[1]);
} else if (sizeof...(args) == 1) {
return this->serial->print(args[0]);
}
}
return 0;
}
template <typename T>
size_t print(const T &t, typename std::enable_if<std::is_convertible<const __FlashStringHelper *, T>::value ||
std::is_base_of<const String &, T>::value ||
std::is_array<T>::value ||
//std::is_same<char[std::extent<T>::value], T>::value ||
std::is_same<char, T>::value ||
std::is_same<char *, T>::value ||
std::is_same<const char *, T>::value ||
std::is_same<unsigned char, T>::value ||
std::is_same<int, T>::value ||
std::is_same<unsigned int, T>::value ||
std::is_same<long, T>::value ||
std::is_same<unsigned long, T>::value ||
std::is_same<double, T>::value ||
std::is_convertible<const Printable &, T>::value ||
std::is_convertible<struct tm *, T>::value,
T>::type * = 0) {
if (serial != NULL) {
return this->serial->print(t);
}
retrun 0;
}
Thanks in advance
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