GiNaC/check checks.cpp checks.h exams.cpp exams.h genex.cpp times.cpp times.h

[Richard Kreckel]

Update of /home/cvs/GiNaC/check

Modified Files:
	checks.cpp checks.h exams.cpp exams.h genex.cpp times.cpp 
	times.h 
Log Message:
* Headers only include <iosfwd> from now on, since that contains all the
  necessary forward declarations without bringing in the whole big
  <iostream> header.