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[open-cobol-list] RE: Question About Functions
From: |
Robert Sherry |
Subject: |
[open-cobol-list] RE: Question About Functions |
Date: |
Tue May 10 06:40:30 2005 |
Roger,
Thanks for the response. Please consider the following function call:
FUNCTION MAX( A B - C - 3 )
How many arguments are being passed to the function MAX and how do you know?
Bob Sherry
-----Original Message-----
From: Roger While [mailto:address@hidden
Sent: Tuesday, May 10, 2005 1:00 AM
To: address@hidden
Cc: address@hidden
Subject: Re: Question About Functions
In so far that a specific function allows it, arithmetic and boolean
expressions
are legal.
In fact you also can nest functions eg. from 2002 standard
syntax rules :
-- quote --
If a function's definition permits arguments and a left parenthesis
immediately follows function-prototypename-
1 or intrinsic-function-name-1, the left parenthesis is always treated as
the left parenthesis of that
function's arguments.
NOTE For a function that may be referenced either with or without
arguments, such as the RANDOM function, careful
coding is necessary to ensure correct interpretation. For example, in the
following:
FUNCTION MAX (FUNCTION RANDOM (A) B)
'A' is treated as an argument to the RANDOM function. If 'A' is instead
meant to be a second argument to the MAX
function, different coding is necessary - either:
FUNCTION MAX ( (FUNCTION RANDOM) (A) B)
or
FUNCTION MAX (FUNCTION RANDOM () A B)
or
FUNCTION MAX (FUNCTION RANDOM A B).
-- end quote --
Roger
- [open-cobol-list] Re: Question About Functions, Roger While, 2005/05/10
- [open-cobol-list] RE: Question About Functions,
Robert Sherry <=
- [open-cobol-list] Re: Question About Functions, Roger While, 2005/05/10
- [open-cobol-list] RE: Question About Functions, Robert Sherry, 2005/05/10
- [open-cobol-list] RE: Question About Functions, Roger While, 2005/05/10
- RE: [open-cobol-list] RE: Question About Functions, Roger While, 2005/05/11
- RE: [open-cobol-list] RE: Question About Functions, Bill Klein, 2005/05/11
- RE: [open-cobol-list] RE: Question About Functions, Roger While, 2005/05/12
- RE: [open-cobol-list] RE: Question About Functions, Bill Klein, 2005/05/12