[Bug c++/103780] zero pointer is considered true
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Dec 20 20:03:20 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103780
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>a pointer that goes to 0 after decrement is still considered true.
Yes a pointer is never a null pointer if it is decremented and it was a valid
pointer to begin with.
Use -fno-delete-null-pointer-checks if you want to disable this optimization.
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