Re: Compiling a C++ source block

[Roger Mason <rmason@mun.ca>]

Hello,

tbanelwebmin <tbanelwebmin@free.fr> writes:

> You may try:
> #+header: :includes '("<iostream>" "<ginac.h>")
>
> Also, you have this commented line:
> # #+header: :var table= 
> It seems to break the #+header: chain
> Just remove it.
>
> By the way, to figure out future compilation problems, you may click on the error:
> /tmp/babel-eqG2i0/C-src-3zG2ec.cpp:16:1: error: unknown type name 'ex' 
> This will open the source file actually being compiled.
>
> Have fun!

Thank you.  For the record, this works:

#+name: gnc_cav
#+header: :includes  '("<iostream>" "<ginac/ginac.h>")
#+header: :libs -I/usr/local/include -L/usr/local/lib -lginac -lcln
#+header: :flags -std=c++17
#+header: :namespaces std GiNaC
#+header: :var job="vectors" :var vol=113.13115406160385926 :var r=1.0995524816924328312
#+header: :var a=4.916 :var c=5.4054
#+header: :main no

Note the :libs line specifies an include path.  A bit unintuitive, but
it does the job.  Specifying a path in the :includes does not work (and
nothing in the docs suggests that it should).

By the way, 'C-c C-v v' also provides access to the file sent for compilation.

Thanks again,
Roger