Hi, This is just an untested draft. If there's rough agreement that this is wanted, I'll test it, write changelog, etc.
The intention of this change is to help improve the common C/C++ language subset, promoting the use of NULL in both languages as the null pointer constant, expanding to nullptr in C++, and to ((void *)0) in C. While C23 added nullptr, it was a terrible mistake, and it doesn't do any good to the C language. (See the link below for more details.) Instead, it's C++ which should reconcile with C. Let's work in that direction. Link: <https://software.codidact.com/posts/292718> Have a lovely day! Alex Alejandro Colomar (5): gcc/ginclude/stddef.h: Indent nested cpp conditionals gcc/ginclude/stddef.h: Invert conditional gcc/ginclude/stddef.h: Define NULL as nullptr if possible Don't define NULL as 0 in C libgm2/libm2pim/wrapc.cc: Define NULL as nullptr gcc/ginclude/stddef.h | 24 +++++++++++-------- .../gcc.c-torture/execute/pr68143_1.c | 2 +- gcc/testsuite/gcc.c-torture/execute/pr70566.c | 2 +- gcc/testsuite/gcc.dg/tm/20100615.c | 2 +- gcc/testsuite/gcc.target/aarch64/pr91927.c | 2 +- libgm2/libm2pim/wrapc.cc | 4 +--- libiberty/alloca.c | 2 +- libiberty/argv.c | 2 +- libiberty/getopt1.c | 2 +- 9 files changed, 22 insertions(+), 20 deletions(-) Range-diff: -: ----------- > 1: 8db5b662bdf gcc/ginclude/stddef.h: Indent nested cpp conditionals -: ----------- > 2: 74c07a6be6e gcc/ginclude/stddef.h: Invert conditional -: ----------- > 3: f0e9337f2e3 gcc/ginclude/stddef.h: Define NULL as nullptr if possible -: ----------- > 4: 30dc1a7973f Don't define NULL as 0 in C -: ----------- > 5: e1836aac591 libgm2/libm2pim/wrapc.cc: Define NULL as nullptr -- 2.45.2
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