From 36c49e3f258dced101949edabd72e9bc3f1dedc4 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Fri, 17 Sep 2010 15:54:40 +0000
Subject: Vendor import of clang r114020 (from the release_28 branch):
 http://llvm.org/svn/llvm-project/cfe/branches/release_28@114020

Approved by:	rpaulo (mentor)
---
 lib/Basic/Builtins.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'lib/Basic/Builtins.cpp')

diff --git a/lib/Basic/Builtins.cpp b/lib/Basic/Builtins.cpp
index 1a32937..040cdb5 100644
--- a/lib/Basic/Builtins.cpp
+++ b/lib/Basic/Builtins.cpp
@@ -93,3 +93,23 @@ Builtin::Context::isPrintfLike(unsigned ID, unsigned &FormatIdx,
   return true;
 }
 
+// FIXME: Refactor with isPrintfLike.
+bool
+Builtin::Context::isScanfLike(unsigned ID, unsigned &FormatIdx,
+                              bool &HasVAListArg) {
+  const char *Scanf = strpbrk(GetRecord(ID).Attributes, "sS");
+  if (!Scanf)
+    return false;
+
+  HasVAListArg = (*Scanf == 'S');
+
+  ++Scanf;
+  assert(*Scanf == ':' && "s or S specifier must have be followed by a ':'");
+  ++Scanf;
+
+  assert(strchr(Scanf, ':') && "printf specifier must end with a ':'");
+  FormatIdx = strtol(Scanf, 0, 10);
+  return true;
+}
+
+
-- 
cgit v1.1