Found the following significant warnings:
  bigmemory.cpp:971:33: warning: 'binary_function<std::pair<double, int>, std::pair<double, int>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:995:36: warning: 'binary_function<std::pair<double, int>, std::pair<double, int>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:971:33: warning: 'binary_function<std::pair<double, double>, std::pair<double, double>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:995:36: warning: 'binary_function<std::pair<double, double>, std::pair<double, double>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:971:33: warning: 'binary_function<std::pair<double, char>, std::pair<double, char>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:995:36: warning: 'binary_function<std::pair<double, char>, std::pair<double, char>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:971:33: warning: 'binary_function<std::pair<double, short>, std::pair<double, short>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:995:36: warning: 'binary_function<std::pair<double, short>, std::pair<double, short>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:971:33: warning: 'binary_function<std::pair<double, unsigned char>, std::pair<double, unsigned char>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:995:36: warning: 'binary_function<std::pair<double, unsigned char>, std::pair<double, unsigned char>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:971:33: warning: 'binary_function<std::pair<double, float>, std::pair<double, float>, bool>' is deprecated [-Wdeprecated-declarations]
  bigmemory.cpp:995:36: warning: 'binary_function<std::pair<double, float>, std::pair<double, float>, bool>' is deprecated [-Wdeprecated-declarations]
  deepcopy.cpp:103:9: warning: use of bitwise '&' with boolean operands [-Wbitwise-instead-of-logical]
See '/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/bigmemory.Rcheck/00install.out' for details.