Hello,
You are right, GNU Prolog uses bounded integers, whose bounds depend on
the architecture (32/64 bits). You can know these limits with (e.g. on a
64 bits machine):
| ?- current_prolog_flag(min_integer,X).
X = -1152921504606846976
yes
| ?- current_prolog_flag(max_integer,X).
X = 1152921504606846975
yes
A workaround to store bigger integers is to spit them into 2 parts and
for instance use a Prolog structure to record them.
Daniel
Le 12/06/2014 21:20, Shuai Wang a écrit :
Hello gnu-prolog users,
I am new to prolog and I just have a quick question..
So basically on my 32bit x64 Linux, It seems that in GNU-Prolog,
integer has only 28bits, so code like below can't be compiled by gplc.
X is 0xdeadbeef.
After a quick search, I still don't know how to use GNU-Prolog to
handle big integer...
I might be able split a 32bit integer like 0xdeadbeef into two 16bit
integers 0xdead and 0xbeef and concat when necessary, but is there any
more convenient way to do this?
Best Regards,
Shuai
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