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TRAIL
- Declare hidden trailing arguments
- Description:
- Declare an argument on those machines that put an extra value at
the end of the argument list to specify the length of a CHARACTER
variable or array element.
- Invocation:
- TRAIL(arg)
- Arguments:
-
-
arg
-
The name of the CHARACTER or CHARACTER array dummy argument.
- Examples:
-
- TRAIL(arg)
- will expand as follows:
| 32bit Unix: |
,int arg_length |
| Some 64bit Unix: |
,long arg_length |
| VAX/VMS: |
|
Next: TRAIL_ARG - Pass the length of a CHARACTER argument to a FORTRAN routine
Up: Full Description of F77 Macros
Previous: SUBROUTINE_ARG - Pass a SUBROUTINE argument to a FORTRAN routine.
CNF and F77 Mixed Language Programming -- FORTRAN and C
Starlink User Note 209
P.M. Allan
A.J. Chipperfield
R.F. Warren-Smith
P.W. Draper
18 April 2008
E-mail:starlink@jiscmail.ac.uk
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