I'm calling a Fortran DLL from C# code. All works fines for the code shown below and I well receive the correct return value at my C# side.
However, as soon as I uncomment the line
open(31, file='output.txt', status='new'), I get the following exception:
System.DllNotFoundException: 'Unable to load DLL 'MyProgram.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)'
Same result for all calls I try to make to the Fortran
For info; I'm compiling with
gfortran installed via
function return_integer(input) result(output) ! Don't leave the calling convention to chance. !GCC$ ATTRIBUTES CDECL :: return_integer integer*4, intent(in) :: input integer*4 :: output ! open(31, file='output.txt', status='new' ) output = 2*input+1 end function
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