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problems with dll library
Posted:
Jan 11, 2013 10:23 PM
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Hi,
I have proble which I can not solve for a long time...
I use MinGW compiler to generate dll library - I use a following command to compile a code:
gcc -Wall -shared libraryX.c -o libraryX.dll
in the libraryX.c I put a simple function:
double signX( double x ) {
double s = 0.0;
/*Funtion body*/
if( x > 0.0) s = 1.0;
if( x < 0.0) s = -1.0;
return(s);
}
When I am trying to use this function in Mathematica with a command:
Needs["NETLink`"]
signX = DefineDLLFunction["signX", "libraryX.dll", "double", {"double"}];
signX[1.0]
I get a following error:
NET::netexcptn:
"A .NET exception occurred: \!\(\"System.BadImageFormatException: Probowano zaladowac program w niepoprawnym formacie.
(Wyj\\:0105tek od HRESULT: 0x8007000B)\\n w
Wolfram.NETLink.DynamicDLLNamespace.DLLWrapper16.signX(Double )
Does anybody know how to load such simple funtion in mathematica?
I would be garteful for some hints.
Regards,
Piotr
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