commit 5ecb1c3f1dfde6e8ed4b493eafef7b43dad19e72
author Sameer Agarwal <sameeragarwal@google.com> Tue Apr 01 09:20:35 2014 -0700
committer Sameer Agarwal <sameeragarwal@google.com> Tue Apr 01 10:04:12 2014 -0700
tree 2bc3b4b55f962417bea800530ae4d92ff83bff59
parent 75e2232b29ff2ea42c8406c9d45b138a7e7a0048

Add Problem::IsParameterBlockPresent.

This allows the user to query the Problem to see if a
parameter block is already present or not.

Change-Id: If786f6c008cc644f3398597901d718d12a6d865d

internal/ceres/problem_impl.cc

diff --git a/internal/ceres/problem_impl.cc b/internal/ceres/problem_impl.cc
index d9fb2af..7c86efb 100644
--- a/internal/ceres/problem_impl.cc
+++ b/internal/ceres/problem_impl.cc
@@ -791,6 +791,11 @@
       parameter_block_map_, const_cast<double*>(parameter_block))->LocalSize();
 };
 
+bool ProblemImpl::HasParameterBlock(const double* parameter_block) const {
+  return (parameter_block_map_.find(const_cast<double*>(parameter_block)) !=
+          parameter_block_map_.end());
+}
+
 void ProblemImpl::GetParameterBlocks(vector<double*>* parameter_blocks) const {
   CHECK_NOTNULL(parameter_blocks);
   parameter_blocks->resize(0);