How to define custom float-type numpy dtypes (C-API)

How to define custom float-type numpy dtypes (C-API) References Reference NO 1 http://stackoverflow.com/questions/13659019/how-to-define-custom-float-type-numpy-dtypes-c-api Reference NO 2 http://docs.scipy.org/doc/numpy/reference/c-api.dtype.html Reference NO 3 http://docs.scipy.org/doc/numpy/reference/c-api.types-and-structures.html Reference NO 4 http://docs.scipy.org/doc/numpy-dev/user/c-info.ufunc-tutorial.html Reference NO 5 http://scipy-lectures.github.io/advanced/interfacing_with_c/interfacing_with_c.html Reference NO 6 http://www.compsci.wm.edu/SciClone/documentation/software/math/NumPy/html1.7/reference/c-api.dtype.html Reference NO 7 http://numpy-discussion.10968.n7.nabble.com/ANN-XDress-v0-1-Automatic-Code-Generator-and-C-C-Wrapper-td33402.html Reference NO 8 https://github.com/xdress/xdress/releases