https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93644
Jochen Roemmler <jochen447 at concept dot de> changed:
What |Removed |Added
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CC| |jochen447 at concept dot de
--- Comment #16 from Jochen Roemmler <jochen447 at concept dot de> ---
Created attachment 50739
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50739&action=edit
another minimal example to demonstrate the false alarm
This is another instance of the test case. A senseless, yet perfectly valid
piece of C code. It creates the false positive warning if compiled like this:
gcc -Wreturn-local-addr -O1 -fisolate-erroneous-paths-dereference -c
pr93644_2.c
pr93644_2.c: In function ‘buildVname’:
pr93644_2.c:28:12: warning: function may return address of local variable
[-Wreturn-local-addr]
28 | return vname;
| ^~~~~
pr93644_2.c:18:17: note: declared here
18 | char buf[256];
| ^~~
I'm using gcc version 11.1.1 20210428 (Red Hat 11.1.1-1) (GCC)
However, I can silence the warning using
# pragma GCC diagnostic ignored "-Wreturn-local-addr"
