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libstdc++: Avoid -Wzero-as-null-pointer-constant warning [PR103848] 

libstdc++-v3/ChangeLog:

	PR libstdc++/103848
	* include/bits/stl_deque.h (operator-): Do not use 0 as null
	pointer constant.
This commit is contained in:
Jonathan Wakely 2022-01-04 21:57:16 +00:00
parent 917c7b136e
commit 76a45931ab
1 changed files with 4 additions and 3 deletions
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7
libstdc++-v3/include/bits/stl_deque.h
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@ -370,7 +370,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
operator-(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT
{
return difference_type(_S_buffer_size())
* (__x._M_node - __y._M_node - int(__x._M_node != 0))
* (__x._M_node - __y._M_node - bool(__x._M_node))
+ (__x._M_cur - __x._M_first)
+ (__y._M_last - __y._M_cur);
}
@ -383,10 +383,11 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
_GLIBCXX_NODISCARD
friend difference_type
operator-(const _Self& __x,
const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) _GLIBCXX_NOEXCEPT
const _Deque_iterator<_Tp, _RefR, _PtrR>& __y)
_GLIBCXX_NOEXCEPT
{
return difference_type(_S_buffer_size())
* (__x._M_node - __y._M_node - int(__x._M_node != 0))
* (__x._M_node - __y._M_node - bool(__x._M_node))
+ (__x._M_cur - __x._M_first)
+ (__y._M_last - __y._M_cur);
}