Why are we subtracting 1 in line 15?

#1

If we are already using a bool compare function to return a<=b the in line 15 why are we subtracting 1 from int lb=…

#2

I understand why are we subtracting 1 when we do not use compare function but I am asking why do we subtract 1 when we are using compare function which only return the value less than or equal to key.

#3

@Ak07,
Because we wan’t less than or equal val, e.g if we want to search for 100, and there is a 100, we want index of 100.

#4

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