dlw@ucbopal.CC.Berkeley.ARPA (07/04/84)
There is NO 'O' edit descriptor in the ANSI X3.9-1978 FORTRAN 77 standard. Therefore it is not a bug that it "doesn't work". It may be considered an inconvenience that the compiler doesn't check the format specification for correctness at compile time, but that is another story. The 4.2bsd runtime library does include a NON-STANDARD (ie don't use it) edit descriptor to achieve other than decimal conversion. The 'nR' specifier defines the 'radix' for subsequent integer conversions. 'n' defaults to 10. That, in conjunction with another NON-STANDARD descriptor, 'SU' (for unsigned), allows, for example, a hex dump format something like format ( su, 16r, 8i10.8 ) Binary, octal, or any radix between 2 and 36 is useable. The above are described in the 4.2bsd Vol II section 'Introduction to the f77 I/O Library'. Having said that, I recently bowed to many requests and added 'O' and 'Z' to the format conversion routine for 4.2bsd. Like the other non-ANSI extensions, users who rely on them do so at their own risk. David Wasley ...!ucbvax!dlw