Integers conversions
Torbjorn Granlund
tg at gmplib.org
Tue Sep 27 11:39:07 CEST 2011
Zdenek Prikryl <iprikryl at fit.vutbr.cz> writes:
Hi,
the following situation is a little bit confusing. Let's assume
following situation:
mpz_t mp;
mpz_init_set_ui(mp, 0xffffffffU);
printf("s %x, u %x, s %s\n", mpz_get_ui(mp),
mpz_get_si(mp),
mpz_get_str(NULL, 16, mp));
I'd expect that all print outs will be the same (i.e. 0xffffffff). But
the real situation is different and the output is:
s ffffffff, u 7fffffff, s ffffffff
Why the mpz_get_si() returns wrong value? It should return -1 (0xffffffff)?
Please read the documentation for mpz_get_si.
--
Torbjörn
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