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* [Bug tree-optimization/87719] missing warning on printf %s and unterminated array
[not found] <bug-87719-4@http.gcc.gnu.org/bugzilla/>
@ 2020-05-01 18:05 ` msebor at gcc dot gnu.org
0 siblings, 0 replies; only message in thread
From: msebor at gcc dot gnu.org @ 2020-05-01 18:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87719
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail|9.0 |8.3.0
Known to work| |10.0, 9.2.0
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
Target Milestone|--- |9.3
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
GCC 9 and 10 issue the expected warning, likely as a result of r264822:
pr87719.c: In function ‘f’:
pr87719.c:5:26: warning: ‘%s’ directive argument is not a nul-terminated string
[-Wformat-overflow=]
5 | __builtin_sprintf (d, "%s", a); // warning, good
| ^~ ~
pr87719.c:1:12: note: referenced argument declared here
1 | const char a[] = { 'a', 'b' };
| ^
pr87719.c: In function ‘g’:
pr87719.c:10:22: warning: ‘%s’ directive argument is not a nul-terminated
string [-Wformat-overflow=]
10 | __builtin_printf ("%s", a); // missing warning
| ^~ ~
pr87719.c:1:12: note: referenced argument declared here
1 | const char a[] = { 'a', 'b' };
| ^
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[not found] <bug-87719-4@http.gcc.gnu.org/bugzilla/>
2020-05-01 18:05 ` [Bug tree-optimization/87719] missing warning on printf %s and unterminated array msebor at gcc dot gnu.org
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