Branch: refs/heads/blead
Home: https://github.com/Perl/perl5
Commit: c3feabe7a309a55a52fead3a97b6ef882f33199d
https://github.com/Perl/perl5/commit/c3feabe7a309a55a52fead3a97b6ef882f33199d
Author: Lukas Mai <lukasmai....@gmail.com>
Date: 2025-08-16 (Sat, 16 Aug 2025)
Changed paths:
M gv.h
M op.h
M sv.h
Log Message:
-----------
avoid '0 + ptr' to create rvalues in macros
Pointer arithmetic (including 0 + ptr) has undefined behavior on null
pointers. That's why the (0 + x->field) trick to provide rvalue
access to struct fields is not generally safe with pointers.
Instead use no-op casts, which also produce rvalues.
Should fix these ASan errors (both from GvGP):
gv.c:2920:44: runtime error: applying zero offset to null pointer
sv.c:3855:25: runtime error: applying zero offset to null pointer
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