[gcc r13-8472] libstdc++: [_GLIBCXX_DEBUG] Define __cpp_lib_null_iterators

[Francois Dumont <fdumont@gcc.gnu.org>]

https://gcc.gnu.org/g:4cc3cdcb7ed8e813c6fe9d18c1ac5a235eb7077d

commit r13-8472-g4cc3cdcb7ed8e813c6fe9d18c1ac5a235eb7077d
Author: François Dumont <fdumont@gcc.gnu.org>
Date:   Wed Mar 20 06:47:20 2024 +0100

    libstdc++: [_GLIBCXX_DEBUG] Define __cpp_lib_null_iterators
    
    _GLIBCXX_DEBUG has now fully N3344 compliant iterator checks, we can define
    __cpp_lib_null_iterators macros like the normal mode.
    
    libstdc++-v3/ChangeLog:
    
            * include/std/iterator (__cpp_lib_null_iterators): Define regardless of
            _GLIBCXX_DEBUG.
            * include/std/version (__cpp_lib_null_iterators): Likewise.

Diff:
---
 libstdc++-v3/include/std/iterator | 2 +-
 libstdc++-v3/include/std/version  | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/libstdc++-v3/include/std/iterator b/libstdc++-v3/include/std/iterator
index 695e18e2c47..a0a8eac570b 100644
--- a/libstdc++-v3/include/std/iterator
+++ b/libstdc++-v3/include/std/iterator
@@ -67,7 +67,7 @@
 #endif
 #include <bits/range_access.h>
 
-#if __cplusplus >= 201402L && ! defined _GLIBCXX_DEBUG // PR libstdc++/70303
+#if __cplusplus >= 201402L
 # define __cpp_lib_null_iterators 201304L
 #endif
 
diff --git a/libstdc++-v3/include/std/version b/libstdc++-v3/include/std/version
index bd1bee0190d..ee515c4e66c 100644
--- a/libstdc++-v3/include/std/version
+++ b/libstdc++-v3/include/std/version
@@ -81,9 +81,7 @@
 #define __cpp_lib_integral_constant_callable 201304L
 #define __cpp_lib_is_final 201402L
 #define __cpp_lib_make_reverse_iterator 201402L
-#ifndef _GLIBCXX_DEBUG // PR libstdc++/70303
-# define __cpp_lib_null_iterators 201304L
-#endif
+#define __cpp_lib_null_iterators 201304L
 #define __cpp_lib_robust_nonmodifying_seq_ops 201304L
 #define __cpp_lib_transformation_trait_aliases 201304L
 #define __cpp_lib_transparent_operators 201510L