[cfe-commits] r126447 - in /cfe/trunk: lib/Sema/SemaChecking.cpp test/Sema/format-strings.c

[Eli Friedman]

On Thu, Feb 24, 2011 at 3:03 PM, Ted Kremenek <kremenek at apple.com> wrote:
> Author: kremenek
> Date: Thu Feb 24 17:03:04 2011
> New Revision: 126447
>
> URL: http://llvm.org/viewvc/llvm-project?rev=126447&view=rev
> Log:
> Don't warn about using PredefinedExprs as format string literals.  These never can be a real security issue.

#include <cstdio>
const int a=0, d=1;
void f(__typeof(a%d)) { printf(__PRETTY_FUNCTION__); puts(""); }
int main() { f(0); return 0; }

Generated output:
void f(typeof (a -1465849624))

Ouch.

-Eli