On 10 Dec 2010, at 09:06, Max Horn wrote: > Am 10.12.2010 um 02:36 schrieb Hebert Pérez-Rosés: > >> Dear Forum, >> >> As far as I know, there is no way to compile a GAP program into an exec >> file, right? > > Yes there is (at least on UNIX type systems like Linux and Mac OS X; don't > know about Windows): You can use "gac", the "GAP compiler", see section 3.7 > of the GAP reference manual > <http://www.gap-system.org/Manuals/doc/htm/ref/CHAP003.htm#SECT007>
Note that this will not result in a C code which you can run stand-alone. >> And I suppose you cannot call a GAP function from another >> language. Please correct me if I am wrong. > > That depends on how you mean that. GAP does not offer a "direct" native > interface which others can hook into to load GAP as, say, a (shared) library. > One can of course "interface" by launching a separate GAP process, and then > send text commands to it, and trying to "parse" the output of GAP (a > technique sometimes also referred to as "screen scrubbing"). The Sage > "interface" Keshav described uses exactly this technique. > > > In addition, GAP can load dynamic modules (again, at least on UNIX type > systems). I used that to implement some of the most time critical functions > of a package I am working on in C, for a major speed boost. So you could > call other systems from within GAP > > > Hope that helps, > Max In addition, Hebert, you may communicate with the GAP server provided by the SCSCP package [1] from another application using SCSCP protocol [2]. A client could be e.g. GAP SCSCP client [1] or another SCSCP-compliant computer algebra system (e.g. MuPAD, via an extension package [3] or Macaulay2 [4] out-of-box). SCSCP has good C/C++ [5] and Java [6] APIs, which may be used for calls from C/C++/Java applications. Please let me know if you would be interested to go this way. Best regards, Alexander [1] http://www.cs.st-andrews.ac.uk/~alexk/scscp.htm [2] http://www.symbolic-computation.org/scscp [3] http://mupad.symcomp.org/ [4] http://www.math.uiuc.edu/Macaulay2/doc/Macaulay2-1.4/share/doc/Macaulay2/SCSCP/html/index.html [5] http://www.imcce.fr/Equipes/ASD/trip/scscp/ [6] http://java.symcomp.org/ _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
