Bitset flip and reset overwrite adjacent memory

[TyberiusPrime]

Both functions go like this
(size_t i = 0; i <= num_bytes; ++i){
When the should go with
(size_t i = 0; i < num_bytes; ++i){

i.e. they iterate one element to far in the internal storage.

[mike-matera]

Hi. This project is dead. I maintain a replacement:

https://github.com/mike-matera/ArduinoSTL

You can install it directly from the Arduino Library Manager. This issue is fixed in my copy.