Initialising int affects function return value

Question

Sorry for the vagueness of this question\'s title, but I\'m not sure how to ask this exactly.

The following code, when executed on an Arduino microprocessor (c++ co

Answer 1

When you don't initialise the variable it has a random value, whatever was in the memory address, so while (i <=strlen(str)) is going to behave unpredictably. You should always initialise.

(Visual Studio Debug configurations automatically initialise variables.)