Grrr. I'm trying to read in a formatted file of integers such as:
1 1 1
10 10 10
100 100 100
(... three characters wide, one space between each column)
Fortran is giving me junk unless I format my read statement with
10 format(I3,A1,I3,A1,I3)
where I read the single space into a temporary variable declared as:
character(1) :: tmp
This is why I am in a bad mood with Fortran today. I put faith in it, and this is how it repays me. Plus, the fridge has frozen my tomatoes. I wonder if they are in league.
Monday, 22 June 2009
Friday, 19 June 2009
Compiling modules separately
When I have a module declared in mymodule.f90, I can compile it like so:
gfortran -m32 -c mymodule.f90
... I can also compile the main file this way:gfortran -m32 -c mainfile.f90
Finally I must link it, possibly also with the NAG library:gfortran -m32 mymodule.o mainfile.o /opt/NAG/fll3a21dfl/lib/libnag_nag.a -o mainfile
Thursday, 18 June 2009
Fortran array initialization
This webpage here is very helpful for fortran arrays.
I'd forgotten that you can initialize vectors like this:
I'd forgotten that you can initialize vectors like this:
x = (/(i,i=0,maxx-1)/)
Instead of:do i=1,maxx
x(i) = i-1
enddo
x(i) = i-1
enddo
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