diff --git a/sal/qa/OStringBuffer/rtl_OStringBuffer.cxx b/sal/qa/OStringBuffer/rtl_OStringBuffer.cxx
index 01a620e8a238..e6a42793b15d 100644
--- a/sal/qa/OStringBuffer/rtl_OStringBuffer.cxx
+++ b/sal/qa/OStringBuffer/rtl_OStringBuffer.cxx
@@ -14789,11 +14789,7 @@ sal_Bool test_append( const char** resArray, int n, sal_Int16 radix,
         {
             ::rtl::OStringBuffer   aStrBuf( *arrOUS[0] );
             OString                expVal( kTestStr116 );
-#if defined(UNX) || defined(OS2)
-            sal_Int64              input = 9223372036854775807LL;
-#else
-            sal_Int64              input = 9223372036854775807;
-#endif
+            sal_Int64              input = SAL_CONST_INT64(9223372036854775807);
             aStrBuf.append( input );
 
             CPPUNIT_ASSERT_MESSAGE
@@ -14873,11 +14869,7 @@ sal_Bool test_append( const char** resArray, int n, sal_Int16 radix,
         {
             ::rtl::OStringBuffer   aStrBuf( *arrOUS[1] );
             OString                expVal( kTestStr118 );
-#if defined(UNX) || defined(OS2)
-            sal_Int64              input = 9223372036854775807LL;
-#else
-            sal_Int64              input = 9223372036854775807;
-#endif
+            sal_Int64              input = SAL_CONST_INT64(9223372036854775807);
             aStrBuf.append( input );
 
             CPPUNIT_ASSERT_MESSAGE
@@ -14956,11 +14948,7 @@ sal_Bool test_append( const char** resArray, int n, sal_Int16 radix,
         {
             ::rtl::OStringBuffer   aStrBuf( *arrOUS[2] );
             OString                expVal( kTestStr118 );
-#if defined(UNX) || defined(OS2)
-            sal_Int64              input = 9223372036854775807LL;
-#else
-            sal_Int64              input = 9223372036854775807;
-#endif
+            sal_Int64              input = SAL_CONST_INT64(9223372036854775807);
             aStrBuf.append( input );
 
             CPPUNIT_ASSERT_MESSAGE
@@ -15039,11 +15027,7 @@ sal_Bool test_append( const char** resArray, int n, sal_Int16 radix,
         {
             ::rtl::OStringBuffer   aStrBuf( *arrOUS[3] );
             OString                expVal( kTestStr118 );
-#if defined(UNX) || defined(OS2)
-            sal_Int64              input = 9223372036854775807LL;
-#else
-            sal_Int64              input = 9223372036854775807;
-#endif
+            sal_Int64              input = SAL_CONST_INT64(9223372036854775807);
             aStrBuf.append( input );
 
             CPPUNIT_ASSERT_MESSAGE
@@ -15122,11 +15106,7 @@ sal_Bool test_append( const char** resArray, int n, sal_Int16 radix,
         {
             ::rtl::OStringBuffer   aStrBuf( *arrOUS[4] );
             OString                expVal( kTestStr120 );
-#if defined(UNX) || defined(OS2)
-            sal_Int64              input = 9223372036854775807LL;
-#else
-            sal_Int64              input = 9223372036854775807;
-#endif
+            sal_Int64              input = SAL_CONST_INT64(9223372036854775807);
             aStrBuf.append( input );
 
             CPPUNIT_ASSERT_MESSAGE
diff --git a/sal/qa/OStringBuffer/rtl_String_Const.h b/sal/qa/OStringBuffer/rtl_String_Const.h
index fb0f9409dded..fbddc8f10d97 100644
--- a/sal/qa/OStringBuffer/rtl_String_Const.h
+++ b/sal/qa/OStringBuffer/rtl_String_Const.h
@@ -357,11 +357,7 @@ static const sal_Int16 kSInt16Max = SHRT_MAX;
 static const sal_Int32 kUInt16Max = USHRT_MAX;
 static const sal_Int32 kSInt32Max = INT_MAX;
 static const sal_Int64 kUInt32Max = UINT_MAX;
-#if defined(UNX) || defined(OS2)
-static const sal_Int64 kSInt64Max = 9223372036854775807LL;
-#else
-static const sal_Int64 kSInt64Max = 9223372036854775807;
-#endif
+static const sal_Int64 kSInt64Max = SAL_CONST_INT64(9223372036854775807);
 
 //------------------------------------------------------------------------