Enable quadruple precision (_Quad)

Enable quadruple precision (_Quad)

I am trying to use the quadruple precision type _Quad in my program but I get an undefined symbol error. I've added -Qoption,cpp,--extended_float_type to my compiler options in visual studio, is there anything else I need to do to get this to work?


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Could you please provide the error message text? It would be nice if you can help with small reproducer.

Error 209 error : identifier "_Quad" is undefined

I've only added the compiler switch to the additional options under the configuration properties for the project and tried to declare a variable of type _Quad.

Could you please use compiler option -Qoption,cpp,--extended_float_type to enable _Quad type. This option is only Intel Compiler specific?

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