Remove unnecessary overload for hash<>
The overload for pointers in hash tables was applied in normal
usage of schur_ordering.cc. However, the tests did not include the
overload since they only included collections_port.h. As a result,
the routines in schur_ordering.cc were using a different hash
function than that inside the tests.
The fix is to remove the specialization. If this breaks one of the
compiler configurations, we will find a workaround at that time.
Change-Id: Idbf60415d5e2aec0c865b514ad0c577d21b91405
diff --git a/internal/ceres/schur_ordering.cc b/internal/ceres/schur_ordering.cc
index 49aacb1..1cdff4e 100644
--- a/internal/ceres/schur_ordering.cc
+++ b/internal/ceres/schur_ordering.cc
@@ -39,21 +39,6 @@
#include "ceres/residual_block.h"
#include "glog/logging.h"
-#if !defined(CERES_NO_TR1)
-
-CERES_HASH_NAMESPACE_START
-
-// Allow us to hash pointers as if they were int's
-template<> struct hash< ::ceres::internal::ParameterBlock*> {
- size_t operator()(::ceres::internal::ParameterBlock* x) const {
- return reinterpret_cast<size_t>(x);
- }
-};
-
-CERES_HASH_NAMESPACE_END
-
-#endif
-
namespace ceres {
namespace internal {
