Are there any good libraries for solving cubic splines in C++?

I'm looking for a good C++ library to give me functions to solve for large cubic splines (on the order of 1000 points) anyone know one?

Solution

Try the Cubic B-Spline library:

https://github.com/NCAR/bspline

and ALGLIB:

http://www.alglib.net/interpolation/spline3.php

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