Support/ADT/Twine: Add toNullTerminatedStringRef.

llvm-svn: 120600

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/unittests/ADT/TwineTest.cpp b/llvm/unittests/ADT/TwineTest.cpp
index 61e8a0a..57f54cb 100644
--- a/llvm/unittests/ADT/TwineTest.cpp
+++ b/llvm/unittests/ADT/TwineTest.cpp
@@ -9,6 +9,7 @@
 
 #include "gtest/gtest.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/ADT/SmallString.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
@@ -69,6 +70,13 @@ TEST(TwineTest, Concat) {
             repr(Twine("a").concat(Twine("b").concat(Twine("c")))));
 }
 
+TEST(TwineTest, toNullTerminatedStringRef) {
+  SmallString<8> storage;
+  EXPECT_EQ(0, *Twine("hello").toNullTerminatedStringRef(storage).end());
+  EXPECT_EQ(0,
+           *Twine(StringRef("hello")).toNullTerminatedStringRef(storage).end());
+}
+
   // I suppose linking in the entire code generator to add a unit test to check
   // the code size of the concat operation is overkill... :)