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| author | Paul Eggert <eggert@cs.ucla.edu> | 2023-02-09 17:09:23 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2023-02-09 17:10:04 -0800 |
| commit | 36f06b07d9cfb3974c160ecc22def3cb1b117106 (patch) | |
| tree | eba82ebe3f3873938c6183075ec26758fb7bf180 /doc | |
| parent | 8eb1529674c157efe5ed902d361c8c779116d4a1 (diff) | |
| download | gnulib-36f06b07d9cfb3974c160ecc22def3cb1b117106.tar.gz | |
nullptr: work around Apple clang 14 issue
Problem reported by Bruno Haible in:
https://lists.gnu.org/r/bug-gnulib/2023-02/msg00098.html
* doc/gnulib.texi (nullptr): Document limitations better.
* m4/nullptr.m4 (gl_NULLPTR): Check for incompatibility of macOS
clang 14.0.0 (clang-1400.0.29.202), where <stddef.h> defines a
non-working nullptr macro.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/gnulib.texi | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/gnulib.texi b/doc/gnulib.texi index 6fe2678834..28d8c20d8c 100644 --- a/doc/gnulib.texi +++ b/doc/gnulib.texi @@ -954,9 +954,10 @@ In C, it has type @code{void *}; in C++ it has an integer type. @item On older platforms Gnulib cannot easily emulate @code{nullptr_t}, so -null pointer type checking is more error prone, and @code{_Generic} -expressions cannot reliably distinguish @code{nullptr}'s type from -integer or @code{void *} types. +null pointer type checking is more error prone. In C, @code{_Generic} +expressions cannot reliably distinguish the type of @code{nullptr} +from integer or @code{void *} types. C++ overloading has similar +limitations. @end itemize @node static_assert |