vc
# define vc(name, value, x1,x2,x3,x4, bexp, xval) \
# define vc(name, value, x1,x2,x3,x4, bexp, xval) \
# define vc(name, value, x1,x2,x3,x4, bexp, xval) \
# define vc(name, value, x1,x2,x3,x4, bexp, xval)