emillon

When I used pwsafe and keepassx they had this option.

You might want to filter local and unroutable URLs, for example entering 127.0.0.1 renders a MAMP Pro page.

It's a common feature of password managers.

There are no semantic problems with this, but typing will get in the way: you can express it fairly easily if all the functions have the same type (such as Int -> Int): actually it's just 'foldr ($)'. But it is difficult to type a list of functions such as each member's return value has the same type as the next one's parameter (symbolically, [an-1 -> an, ..., a1 -> a2, a0 -> a1]). It's easier to refer to the composition of such functions, which is why you would see it as 'h . g . f'.

This kind of proofs usually are separated in two steps:

- correction: define a loop invariant. Assuming the loop terminates, it will hold when the program exits the loop.

- termination: define a loop variant, something that changes at every iteration. If you can find a variant that is a strictly decreasing sequence of natural numbers (or an increasing, bounded sequence), you've established that the loop terminates.

Once you've done these two steps you know that the program terminates and the invariant holds at the end. (in your case, you won't be able to find a good variant - depending on the floating point semantics you use of course).

This is correct, I missed this!

That's assuming that this particular string was already present somewhere in the binary. Since it is only present as a reference, you would not see the string in a binary patch.