Multidimensional Arrays; General Parameter-Passing In Fortran And Pascal - Sun Microsystems SunSoft Pascal 4.0 User Manual

General Parameter-Passing in FORTRAN and Pascal

Pascal Set Types
In Pascal, a set type is implemented as a bit vector, which is similar to a
FORTRAN 16-bit word. Direct access to individual elements of a set is highly
machine-dependent and should be avoided.

Multidimensional Arrays

Pascal multidimension arrays are incompatible with FORTRAN multi-
dimension arrays. Since Pascal arrays use row-major indexing, and FORTRAN
arrays use column-major indexing, an array passed in either direction appears
to be transposed.
A few general rules apply to passing parameters:
•
By default, FORTRAN passes all parameters by reference.
•
In FORTRAN, if you want to pass anything by value, then you must
explicitly use the nonstandard function %VAL().
•
Pascal passes all parameters by value unless you explicitly state that they
are var, out, or in out parameters, in which case they are passed by
reference.
•
The routine options nonpascal, extern fortran, and external
fortran pass by reference.
The FORTRAN–Pascal Interface
8
167