Re: On-the-fly compilation and execution of C++ program

James Kanze <>
Sat, 31 May 2008 17:05:41 -0700 (PDT)
On May 31, 10:51 pm, Kai-Uwe Bux <> wrote: wrote:

we are designing some stuff , that will generate c++
program(s) What we want is we wanted to execute that
generated code....

1. Xml based language
2. C++ code generated from 1.[Its mapping between 1 & 2]
3. compilation
4. execution.

What we have got stucked at compilation, we want that our
user should not take care about compilation or c++ code
generation etc...They just write some xml "code" and it
should execute !


Well, what about using a compiler? If you don't want to write
your own, which would take a while, you could contact a
compiler vendor for the target platform and obtain a license
to include a compiler into your package and call it from a
script or something. Other than that, you could document the
need for a C++ compiler and test for it during installation of
your program.

The real question is why they would insist on C++ for step 2.
It seems highly unlikely that machine generated code from user
written XML would require all of the power of C++. Unless they
really needed the speed of an optimized compilation, I'd
probably just "invent" some sort of internal language that was
1) easy to generate from XML, 2) easy to parse, and 3) easy to
interpret effectively. (Said language might not even support
text as a source format.)

James Kanze (GABI Software)
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