GitLab

C++11's std::hash provides a default hash for T* that hashes by pointer value.
So does MSVC's stdext::hash_value, but not GCC's __gnu_cxx::hash (and STLPort's
std::hash). To align non-MSVC with both MSVC and the standard, provide a
default hash for pointers. This removes a lot of GCC-specific hash definitions.

Confusingly, all three provide a default hash for const char * that hashes as C
string, while not changing their equality. This CL does not change this on any
platform.

BUG=420242

Review URL: https://codereview.chromium.org/630503002

Cr-Commit-Position: refs/heads/master@{#299217}