Support the 'a' length modifier in scanf format strings as a C90

extension.

This fixes gcc.dg/format/c90-scanf-3.c and ext-4.c (test for excess
errors).

llvm-svn: 146649

1 files changed, 4 insertions, 2 deletions

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index ebdc8321f70..c8f2d05e0d4 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -2442,7 +2442,8 @@ void Sema::CheckFormatString(const StringLiteral *FExpr,
                          Str, HasVAListArg, TheCall, format_idx,
                          inFunctionCall);
   
-    if (!analyze_format_string::ParsePrintfString(H, Str, Str + StrLen))
+    if (!analyze_format_string::ParsePrintfString(H, Str, Str + StrLen,
+                                                  getLangOptions()))
       H.DoneProcessing();
   }
   else {
@@ -2451,7 +2452,8 @@ void Sema::CheckFormatString(const StringLiteral *FExpr,
                         Str, HasVAListArg, TheCall, format_idx,
                         inFunctionCall);
     
-    if (!analyze_format_string::ParseScanfString(H, Str, Str + StrLen))
+    if (!analyze_format_string::ParseScanfString(H, Str, Str + StrLen,
+                                                 getLangOptions()))
       H.DoneProcessing();
   }
 }