dbx can locate Fortran logical operators and print them.
To show logical operators in dbx, type:
demo% cat ShowLogical.f LOGICAL a, b, y, z a = .true. b = .false. y = .true. z = .false. END demo% f95 -g ShowLogical.f demo% dbx a.out (dbx) list 1,9 1 LOGICAL a, b, y, z 2 a = .true. 3 b = .false. 4 y = .true. 5 z = .false. 6 END (dbx) stop at 5 (2) stop at "ShowLogical.f":5 (dbx) run Running: a.out (process id 15394) stopped in MAIN at line 5 in file "ShowLogical.f" 5 z = .false. (dbx) whatis y logical*4 y (dbx) print a .or. y a.OR.y = true (dbx) assign z = a .or. y (dbx) print z z = true (dbx) quit demo% |