implemented (disabled by default) sized delete supportwip-from-alk-for-review

gcc 5 and clang++-3.7 support sized deallocation from C++14. We are
taking advantage of that by defining sized versions of operator delete.

This is off by default so that if some existing programs that define own
global operator delete without sized variant are not broken by
tcmalloc's sized delete operator.

There is also risk of breaking exiting code that deletes objects using
wrong class (i.e. base class) without having virtual destructors.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/windows/gperftools/tcmalloc.h b/src/windows/gperftools/tcmalloc.h
index 5867c7c..9c4753f 100644
--- a/src/windows/gperftools/tcmalloc.h
+++ b/src/windows/gperftools/tcmalloc.h
@@ -112,12 +112,14 @@ extern "C" {
   PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size,
                                           const std::nothrow_t&) __THROW;
   PERFTOOLS_DLL_DECL void tc_delete(void* p) __THROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized(void* p, size_t size) throw();
   PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p,
                                             const std::nothrow_t&) __THROW;
   PERFTOOLS_DLL_DECL void* tc_newarray(size_t size);
   PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size,
                                                const std::nothrow_t&) __THROW;
   PERFTOOLS_DLL_DECL void tc_deletearray(void* p) __THROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized(void* p, size_t size) throw();
   PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p,
                                                  const std::nothrow_t&) __THROW;
 }