[cfe-commits] r94867 - in /cfe/trunk: lib/Analysis/PrintfFormatString.cpp test/Sema/format-strings.c

[Ted Kremenek]

Author: kremenek
Date: Fri Jan 29 19:02:18 2010
New Revision: 94867

URL: http://llvm.org/viewvc/llvm-project?rev=94867&view=rev
Log:
Add format string checking of 'double' arguments.  Fixes <rdar://problem/6931734>.

Modified:
    cfe/trunk/lib/Analysis/PrintfFormatString.cpp
    cfe/trunk/test/Sema/format-strings.c

Modified: cfe/trunk/lib/Analysis/PrintfFormatString.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/PrintfFormatString.cpp?rev=94867&r1=94866&r2=94867&view=diff

==============================================================================
--- cfe/trunk/lib/Analysis/PrintfFormatString.cpp (original)
+++ cfe/trunk/lib/Analysis/PrintfFormatString.cpp Fri Jan 29 19:02:18 2010
@@ -309,6 +309,9 @@
         // version of ptrdiff_t?
         return ArgTypeResult();
     }
+  
+  if (CS.isDoubleArg())
+    return Ctx.DoubleTy;
 
   // FIXME: Handle other cases.
   return ArgTypeResult();

Modified: cfe/trunk/test/Sema/format-strings.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Sema/format-strings.c?rev=94867&r1=94866&r2=94867&view=diff

==============================================================================
--- cfe/trunk/test/Sema/format-strings.c (original)
+++ cfe/trunk/test/Sema/format-strings.c Fri Jan 29 19:02:18 2010
@@ -160,6 +160,7 @@
   printf("%"); // expected-warning{{incomplete format specifier}}
   printf("%.d", x); // no-warning
   printf("%.", x);  // expected-warning{{incomplete format specifier}}
+  printf("%f", 4); // expected-warning{{conversion specifies type 'double' but the argument has type 'int'}}
 } 
 
 typedef struct __aslclient *aslclient;