Aloha Thierry, How about a user-customizable variable with a default value of 2147483647?
All the best, Tom Thierry Banel <tbanelweb...@free.fr> writes: > Hi Achim. > > You are right, INT_MAX is the C++ constant to compare to. > It is defined in limits.h > > I'm not sure I want to locate limits.h (where is it ? are there several > versions ?), > and parse it, all from within Emacs-lisp... > And this will have to be done for all languages (Python, Perl, Java, and > so on), > not just C++. > > Or we could assume that INT_MAX is always 2147483647. > (Which of course is not true). > > Not so easy... > > Regards > Thierry > > Le 16/06/2014 20:28, Achim Gratz a écrit : >> Thierry Banel writes: >>> So Babel C++ may cause problem for large integers. >>> I am not sure how we can fix this in any case. >> You'd need to know INT_MAX and give an error for larger values or use an >> integral type that is large enough to handle Emacs' integer (which would >> most likely be necessary for any Emacs that uses wide integer). >> >>> In the meantime, we can force large values to be declared as doubles by >>> adding dot zero >>> like this: >>> >>> #+BEGIN_SRC C++ :var large=9876543210 .0 >>> printf ("%g", large); >>> #+END_SRC >> That will lose precision, so it may not be the right thing either. >> >> >> Regards, >> Achim. > > > -- Thomas S. Dye http://www.tsdye.com