HP 3000 Manuals HP 3000 Manuals
List-Directed READ Statements
HP FORTRAN 77 handles list-directed input differently from FORTRAN 66/V.
FORTRAN 66/V allows you to input fewer values than the number of
variables in a READ statement. HP FORTRAN 77/V requires that you either
supply a value for each variable in the READ statement or append a slash
(/) after the last value.
For example, for the source lines
REAL A,B
READ (5,*) A,B
in FORTRAN 66/V you can input a value for A, followed by a carriage
return. In HP FORTRAN 77/V, you must enter values for A and B or else
input a value for A and follow it with a slash (/).
If your program uses list-directed READs from a data file and any lines
in the data file contain fewer input values than the READ expects, append
a slash to the end of each line (this can be done with a global command
through your editor).