---
 libaudiofile/modules/SimpleModule.h |    2 +-
 test/NeXT.cpp                       |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

--- a/libaudiofile/modules/SimpleModule.h
+++ b/libaudiofile/modules/SimpleModule.h
@@ -123,7 +123,7 @@ struct signConverter
 	typedef typename IntTypes<Format>::UnsignedType UnsignedType;
 
 	static const int kScaleBits = (Format + 1) * CHAR_BIT - 1;
-	static const int kMinSignedValue = -1 << kScaleBits;
+	static const int kMinSignedValue = -1U << kScaleBits;
 
 	struct signedToUnsigned : public std::unary_function<SignedType, UnsignedType>
 	{
--- a/test/NeXT.cpp
+++ b/test/NeXT.cpp
@@ -37,7 +37,7 @@
 
 #include "TestUtilities.h"
 
-const char kDataUnspecifiedLength[] =
+const unsigned char kDataUnspecifiedLength[] =
 {
 	'.', 's', 'n', 'd',
 	0, 0, 0, 24, // offset of 24 bytes
@@ -57,7 +57,7 @@ const char kDataUnspecifiedLength[] =
 	0, 55
 };
 
-const char kDataTruncated[] =
+const unsigned char kDataTruncated[] =
 {
 	'.', 's', 'n', 'd',
 	0, 0, 0, 24, // offset of 24 bytes
@@ -152,7 +152,7 @@ TEST(NeXT, Truncated)
 	ASSERT_EQ(::unlink(testFileName.c_str()), 0);
 }
 
-const char kDataZeroChannels[] =
+const unsigned char kDataZeroChannels[] =
 {
 	'.', 's', 'n', 'd',
 	0, 0, 0, 24, // offset of 24 bytes