maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[libc++abi] Remove redundant null pointer check in operator delete 

Similar to D52401. Normally operator delete is defined in libc++abi
(LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS is off by default).

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.

free on MSDN:

    If memblock is NULL, the pointer is ignored and free immediately returns.

Reviewed By: #libc_abi, ldionne

Differential Revision: https://reviews.llvm.org/D93339
This commit is contained in:
Fangrui Song 2020-12-16 13:29:40 -08:00
parent e728024808
commit ef74f0fdc3
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
libcxxabi/src/stdlib_new_delete.cpp
View File

@ -93,8 +93,7 @@ _LIBCXXABI_WEAK
void
operator delete(void* ptr) _NOEXCEPT
{
if (ptr)
::free(ptr);
::free(ptr);
}
_LIBCXXABI_WEAK