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CHARACTER - Declare a CHARACTER argument

Description:
Declare a C function argument, given that the actual argument will be a CHARACTER variable passed from a FORTRAN program.

Invocation:
CHARACTER(arg)

Arguments:

arg
The dummy argument to be declared.

Examples:

CHARACTER(x)
will expand as follows:

All Unix: char *x
VAX/VMS: struct dsc$descriptor_s *x_arg


Notes:
On a VAX/VMS system, the macro expands to a pointer to a descriptor whereas on other systems it expands to a pointer to char.


next up previous 252
Next: CHARACTER_ARG - Pass a CHARACTER argument to a FORTRAN routine
Up: Full Description of F77 Macros
Previous: Specific Descriptions

CNF and F77 Mixed Language Programming -- FORTRAN and C
Starlink User Note 209
P.M. Allan
A.J. Chipperfield
R.F. Warren-Smith
19 January 2000
E-mail:ussc@star.rl.ac.uk