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: | |