GMP does not check for memory allocation failures

[Matt Carter]

I noticed that GMP doesn't check for failed memory allocations.
This causes my application to crash when the system is low on memory.
GMP version: 4.0.1
I have noticed the problem in mpf/set*.c and mpf/iset*.c, but I suspect the
problem is elsewhere, too.
I have solved the problem in mpf by adding return codes to __gmpf_set*(),
and checking the return values of allocation calls for NULL.  I can provide
you my code if you wish.

Sincerely,
Matt Carter