GiNaC/ginac clifford.cpp color.cpp indexed.cpp symmetry.cpp symmetry.h tensor.cpp

[Christian Bauer]

Update of /home/cvs/GiNaC/ginac

Modified Files:
      Tag: ginac_1-2
	clifford.cpp color.cpp indexed.cpp symmetry.cpp symmetry.h 
	tensor.cpp 
Log Message:
predefined tensors and common symmetries are taken from preallocated objects
to conserve memory