In https://forum.arduino.cc/t/hat-multimap-eine-begrenzung/1432289/ a user reported a problem with arrays of 331 values.
The constructor of multiMap accepts only uint8_t for the array size.
The code breaks after 255 values.
Either check for >=255 or make the code working for higher values.
Proposal:
changing the variable size to a size_t solves the issue (for the parameter and the local variable pos)
template<typename T>
T multiMap(T value, T* _in, T* _out, size_t size)
//T multiMap(T value, T* _in, T* _out, uint8_t size) // breaks
{
// output is constrained to out array
if (value <= _in[0]) return _out[0];
if (value >= _in[size-1]) return _out[size-1];
// search right interval
//uint8_t pos = 1; // _in[0] already tested // breaks
size_t pos = 1; // _in[0] already tested
while(value > _in[pos]) pos++;
// this will handle all exact "points" in the _in array
if (value == _in[pos]) return _out[pos];
// interpolate in the right segment for the rest
return (value - _in[pos-1]) * (_out[pos] - _out[pos-1]) / (_in[pos] - _in[pos-1]) + _out[pos-1];
}other functions might be also effected.
(added syntax highlight)
In https://forum.arduino.cc/t/hat-multimap-eine-begrenzung/1432289/ a user reported a problem with arrays of 331 values.
The constructor of multiMap accepts only uint8_t for the array size.
The code breaks after 255 values.
Either check for >=255 or make the code working for higher values.
Proposal:
changing the variable size to a size_t solves the issue (for the parameter and the local variable pos)
other functions might be also effected.
(added syntax highlight)