Remove redundant null pointer check in operator delete
Summary:
C89 4.10.3.2 The free function
C99 7.20.3.2 The free function
C11 7.22.3.3 The free function
If ptr is a null pointer, no action shall occur.
_aligned_free on MSDN:
If memblock is a NULL pointer, this function simply performs no actions.
Reviewers: EricWF, mclow.lists, khng300, hotpxl
Reviewed By: mclow.lists, khng300, hotpxl
Subscribers: lichray, llvm-commits, hotpxl, khng300, christof, ldionne, cfe-commits, libcxx-commits
Differential Revision: https://reviews.llvm.org/D52401
llvm-svn: 343503
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 7cd67904f77608a70fa87aacb254fff6bc94f6ba
diff --git a/src/new.cpp b/src/new.cpp
index 8013d89..35f481d 100644
--- a/src/new.cpp
+++ b/src/new.cpp
@@ -135,8 +135,7 @@
void
operator delete(void* ptr) _NOEXCEPT
{
- if (ptr)
- ::free(ptr);
+ ::free(ptr);
}
_LIBCPP_WEAK
@@ -257,11 +256,10 @@
void
operator delete(void* ptr, std::align_val_t) _NOEXCEPT
{
- if (ptr)
#if defined(_LIBCPP_MSVCRT_LIKE)
- ::_aligned_free(ptr);
+ ::_aligned_free(ptr);
#else
- ::free(ptr);
+ ::free(ptr);
#endif
}