tree 30de06d7d862afa928609b0ff3ff07f6831b3c3c
parent 1ab7fde626c3d3ac02664183f21fedd397785bea
author Keir Mierle <mierle@gmail.com> 1369298948 -0700
committer Sameer Agarwal <sameeragarwal@google.com> 1373351335 +0000

Extend the C API to support loss functions

This extends the C API to support loss functions. Both
user-supplied cost functions as well as the stock Ceres cost
functions (Cauchy, Huber, etc) are supported. In addition, this
adds a simple unit test for the C API.

Supporting loss functions required changing the signature of the
ceres_add_residual_block() function to also take a thunk for the
loss function.

Change-Id: Iefa58cf709adbb8f24588e5eb6aed9aef46b6d73