diff --git a/cppu/source/typelib/typelib.cxx b/cppu/source/typelib/typelib.cxx
index d659171f1722..fddaa16baa3a 100644
--- a/cppu/source/typelib/typelib.cxx
+++ b/cppu/source/typelib/typelib.cxx
@@ -35,6 +35,7 @@
 #include <osl/diagnose.h>
 #include <typelib/typedescription.h>
 #include <uno/any2.h>
+#include <o3tl/string_view.hxx>
 #include "typelib.hxx"
 
 using namespace osl;
@@ -1984,8 +1985,8 @@ extern "C" void SAL_CALL typelib_typedescription_getByName(
                         &pInterface, name.copy(i4 + 1).pData);
                     if (!createDerivedInterfaceMemberDescription(
                             ppRet, name, pBaseRef, pBase, pInterface,
-                            name.copy(i2, i3 - i2).toInt32(),
-                            name.copy(i3 + 1, i4 - i3 - 1).toInt32()))
+                            o3tl::toInt32(name.subView(i2, i3 - i2)),
+                            o3tl::toInt32(name.subView(i3 + 1, i4 - i3 - 1))))
                     {
                         if (pInterface != nullptr) {
                             typelib_typedescription_release(pInterface);
diff --git a/stoc/source/security/permissions.cxx b/stoc/source/security/permissions.cxx
index 1d7aca177344..8fa8bdd831cd 100644
--- a/stoc/source/security/permissions.cxx
+++ b/stoc/source/security/permissions.cxx
@@ -27,6 +27,7 @@
 #include <rtl/string.hxx>
 #include <rtl/ustrbuf.hxx>
 #include <sal/log.hxx>
+#include <o3tl/string_view.hxx>
 
 #include <com/sun/star/security/RuntimePermission.hpp>
 #include <com/sun/star/security/AllPermission.hpp>
@@ -148,20 +149,20 @@ SocketPermission::SocketPermission(
     sal_Int32 minus = m_host.indexOf( '-', colon +1 );
     if (minus < 0)
     {
-        m_lowerPort = m_upperPort = m_host.copy( colon +1 ).toInt32();
+        m_lowerPort = m_upperPort = o3tl::toInt32(m_host.subView( colon +1 ));
     }
     else if (minus == (colon +1)) // -N
     {
-        m_upperPort = m_host.copy( minus +1 ).toInt32();
+        m_upperPort = o3tl::toInt32(m_host.subView( minus +1 ));
     }
     else if (minus == (m_host.getLength() -1)) // N-
     {
-        m_lowerPort = m_host.copy( colon +1, m_host.getLength() -1 -colon -1 ).toInt32();
+        m_lowerPort = o3tl::toInt32(m_host.subView( colon +1, m_host.getLength() -1 -colon -1 ));
     }
     else // A-B
     {
-        m_lowerPort = m_host.copy( colon +1, minus - colon -1 ).toInt32();
-        m_upperPort = m_host.copy( minus +1 ).toInt32();
+        m_lowerPort = o3tl::toInt32(m_host.subView( colon +1, minus - colon -1 ));
+        m_upperPort = o3tl::toInt32(m_host.subView( minus +1 ));
     }
     m_host = m_host.copy( 0, colon );
 }