Fortran - Re: Can gfortran has the function of define the precision of whole

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Re: Can gfortran has the function of define the precision of whole

glen herrmannsfeldt

2007-08-21, 4:33 am

Arjen Markus wrote:

(snip)
[color=darkred]
> It has that option: -fdefault-real-8

> But why would you want to do that? It makes your program rely on
> parameters outside the source code. While that is almost
> inevitable, it seems to me very bad style not to be able
> to see from the source code whether single or double precision
> is to be used.

There is the ever popular

IMPLICIT DOUBLE PRECISION (A-H,O-Z)

It has its own good and bad points. Being visible in the program
is one of the good points.

-- glen

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