diff --git a/tools/qa/cppunit/test_stream.cxx b/tools/qa/cppunit/test_stream.cxx
index 0125259d5bc7..4390fe0c6e16 100644
--- a/tools/qa/cppunit/test_stream.cxx
+++ b/tools/qa/cppunit/test_stream.cxx
@@ -46,7 +46,7 @@ namespace
     {
         char foo[] = "foo";
         std::istringstream iss(foo, std::istringstream::in);
-        SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ);
+        SvMemoryStream aMemStream(foo, std::size(foo)-1, StreamMode::READ);
 
         char std_a(78);
         iss >> std_a;
@@ -137,7 +137,7 @@ namespace
     void Test::test_fastostring()
     {
         char foo[] = "foobar";
-        SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ);
+        SvMemoryStream aMemStream(foo, std::size(foo)-1, StreamMode::READ);
 
         OString aOne = read_uInt8s_ToOString(aMemStream, 3);
         CPPUNIT_ASSERT_EQUAL("foo"_ostr, aOne);
@@ -157,7 +157,7 @@ namespace
     void Test::test_read_cstring()
     {
         char foo[] = "foobar";
-        SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ);
+        SvMemoryStream aMemStream(foo, std::size(foo)-1, StreamMode::READ);
 
         OString aOne = read_zeroTerminated_uInt8s_ToOString(aMemStream);
         CPPUNIT_ASSERT_EQUAL("foobar"_ostr, aOne);
@@ -175,7 +175,7 @@ namespace
     void Test::test_read_pstring()
     {
         char foo[] = "\3foobar";
-        SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ);
+        SvMemoryStream aMemStream(foo, std::size(foo)-1, StreamMode::READ);
 
         OString aFoo = read_uInt8_lenPrefixed_uInt8s_ToOString(aMemStream);
         CPPUNIT_ASSERT_EQUAL("foo"_ostr, aFoo);
@@ -205,7 +205,7 @@ namespace
     void Test::test_readline()
     {
         char foo[] = "foo\nbar\n\n";
-        SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ);
+        SvMemoryStream aMemStream(foo, std::size(foo)-1, StreamMode::READ);
 
         OString aFoo;
         bool bRet;
@@ -268,7 +268,7 @@ namespace
         CPPUNIT_ASSERT(!iss.bad());
 
         char bar[] = "foo";
-        SvMemoryStream aMemStreamB(bar, SAL_N_ELEMENTS(bar)-1, StreamMode::READ);
+        SvMemoryStream aMemStreamB(bar, std::size(bar)-1, StreamMode::READ);
         bRet = aMemStreamB.ReadLine(aFoo);
         CPPUNIT_ASSERT(bRet);
         CPPUNIT_ASSERT_EQUAL("foo"_ostr, aFoo);