Re: Reading code from a file

From:
"Jim Langston" <tazmaster@rocketmail.com>
Newsgroups:
comp.lang.c++
Date:
Tue, 21 Aug 2007 17:44:17 -0700
Message-ID:
<ZFLyi.49$E52.10@newsfe12.lga>
<mbrigdan@gmail.com> wrote in message
news:1187733204.522053.106990@q3g2000prf.googlegroups.com...

On Aug 21, 3:39 pm, "BobR" <removeBadB...@worldnet.att.net> wrote:

<mbrig...@gmail.com> wrote in message...

What I am trying to do is to create a very basic A-life simulator.
What I can't figure out is how to read and execute C++ code from a
file, if I could do this it would be simple to make custom files or
have the main program make them.
Any help would be appreciated.


Just compile it, [check output], and run it using 'system()'.

[ untested. just for an idea. ]
std::string comp( "g++ " );
std::string cpplibs( "-lmylib " );
std::string cppfile( "MyFile.cpp " );
std::string Command = "\"" + comp + cppfile + cpplibs + "\"";
system( Command );
// check it here
system( MyFile );

Get the source for some IDE, and examine how they do it.

--
Bob R
POVrookie


Can you explain that a bit more? It might be just what I need.
Just to clear up what I need it for:

I need it the main program to dynamically (At runtime) genarate code.
The only way I can see for this to be done is to (have the program)
write it to a file then load it back at a later time.

I need to be able to create and run a large number of files without
having to code in a loading mechanism for each one.


Another option is to compile the source into some type of run time library
that your program can then load and execute some function.

However, an interpreter is probably better. You can probably find some C++
interpreter on the net I would go with a an interpreted langauge, however,
such as maybe python.

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