[net.bugs] f77 bug

warren (06/21/82)

#N:uicsovax:10900001:000:381
uicsovax!warren    Jun 18 21:51:00 1982

in f77 using a 0 as a continuation character in a common block is
treated differently than other symbols, 0 gives a syntax error
when placed in column 6, other symbols (i tried other digits) dont.

the way berkeley f77 parses common blocks declarations is not standard in
other respects, I have examples if anyone is interested.

this is an obscure, but nevertheless present bug.

lou@sri-unix (06/23/82)

A zero isn't supposed to be a continuation character, according to both
the '66 and '77 Fortran standards.  You should never have a 0 in column
six.  I am not surprised you got a syntax error on your `continuation'
line that started with a 0.  A continuation line is defined as one which
has a non-blank, non-zero character in column 6.

			Lou Warshawsky
			General Instrument R&D
			Chandler, AZ