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PPPO
Joined: 04 Nov 2012
Posts: 6
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 Posted: Fri Dec 14, 2012 6:50 am Post subject: FORTRAN ERROR |
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Hi
"Access violation"
Anyone seen this error?
It occurs when trying to call subroutine:
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khoshravan
Joined: 03 Dec 2012
Posts: 31
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| Posted: Fri Dec 21, 2012 11:07 am Post subject: Re: FORTRAN ERROR |
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| PPPO wrote: | Hi
"Access violation"
Anyone seen this error?
It occurs when trying to call subroutine:
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I have no idea what is the answer to this question is, but want to learn more from this question.
Is it possible to call subroutines only with their name without specifying their parameters? |
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IanLambley
Joined: 17 Dec 2006
Posts: 506
Location: Sunderland
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| Posted: Fri Dec 21, 2012 1:24 pm Post subject: |
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Yes it is.
If the subroutine has no parameters, i.e. all data is passed to and from it by other means, such as comon, modules or files. If there are no parameters, you do not need the open and close brackets in the subroutine definition or in the call statement.
For functions with no parameters, you do need the open and close brackets in both the function definition and the statement which references the function.
Examples: | Code: |
program test
real*8 a, john
call fred
a = john()
end
subroutine fred
print *, 'Executing subroutine FRED'
end
real*8 function john()
john = atan(0.7071d0)
end |
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