[PFunc] missing includes in dag.h

[Jeff Hammond]

The file dag.h needs to include stdio.h and stdlib.h (or cstdio and
cstdlib if one wants proper C++) to address the following errors:

In file included from /software/pfunc/PFunc-1.0.1/examples/cxx/while.cpp:25:0:
/software/pfunc/PFunc-1.0.1/examples/cxx/dot_reader/dag.h: In function
‘void add_edge(vertex_t*, vertex_t*, int)’:
/software/pfunc/PFunc-1.0.1/examples/cxx/dot_reader/dag.h:105:66:
error: ‘malloc’ was not declared in this scope
/software/pfunc/PFunc-1.0.1/examples/cxx/dot_reader/dag.h: In function
‘void pretty_print()’:
/software/pfunc/PFunc-1.0.1/examples/cxx/dot_reader/dag.h:142:56:
error: ‘printf’ was not declared in this scope
/software/pfunc/PFunc-1.0.1/examples/cxx/dot_reader/dag.h:154:17:
error: ‘printf’ was not declared in this scope
make[2]: *** [examples/cxx/CMakeFiles/while.dir/while.cpp.o] Error 1
make[1]: *** [examples/cxx/CMakeFiles/while.dir/all] Error 2

I am using the GNU 4.5.0 C++ compiler.

Thanks,

Jeff

-- 
Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381
http://www.linkedin.com/in/jeffhammond
https://wiki.alcf.anl.gov/index.php/User:Jhammond