unsigned int in for loops

[eles]

hi everybody,

recently i was hit by an old-known programming error, using unsigned int in for
loops could get into infinite traps:

http://stackoverflow.com/questions/665745/whats-the-best-way-to-do-a-reverse-
for-loop-with-an-unsigned-index

so, i D (1 or 2) is counter-attacking in some way (for example, disabling
implicit casting of (-1) to UINT_MAX).

cordially,

eles.

PS i really like being able to use an unsigned int for those loops, both for
logical and for programming (large values of the loop index), while still
avoiding such traps. thanks.