Prefer using declarations over using directives

Change-Id: I1316fc4ae1d4dab91684bdc059f5c69c5e0c401a

cppuhelper/source/access_control.cxx

@@ -25,12 +25,12 @@
 #include <com/sun/star/io/FilePermission.hpp>
 #include <com/sun/star/connection/SocketPermission.hpp>
 
-
-using namespace ::rtl;
 using namespace ::osl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 
+using rtl::OUString;
+
 namespace
 {
     inline OUString str_ac_singleton()

cppuhelper/source/bootstrap.cxx

@@ -44,12 +44,13 @@
 
 #define ARLEN(x) sizeof (x) / sizeof *(x)
 
-
-using namespace ::rtl;
 using namespace ::osl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 
+using rtl::Bootstrap;
+using rtl::OUString;
+
 namespace cppu
 {
 

cppuhelper/source/component_context.cxx

@@ -60,12 +60,14 @@
 #define TDMGR_SINGLETON "/singletons/com.sun.star.reflection.theTypeDescriptionManager"
 #define AC_SINGLETON "/singletons/com.sun.star.security.theAccessController"
 
-
 using namespace ::osl;
-using namespace ::rtl;
 using namespace ::com::sun::star::uno;
 using namespace ::com::sun::star;
 
+using rtl::OUString;
+using rtl::OUStringBuffer;
+using rtl::OUStringHash;
+
 namespace cppu
 {
 

cppuhelper/source/exc_thrower.cxx

@@ -29,8 +29,6 @@
 
 #include "cppuhelper/exc_hlp.hxx"
 
-
-using namespace ::rtl;
 using namespace ::osl;
 using namespace ::cppu;
 using namespace ::com::sun::star;

cppuhelper/source/implbase.cxx

@@ -27,10 +27,11 @@
 #include "com/sun/star/uno/RuntimeException.hpp"
 
 using namespace ::osl;
-using namespace ::rtl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 
+using rtl::OUString;
+
 namespace
 {
     class theImplHelperInitMutex : public rtl::Static<Mutex, theImplHelperInitMutex>{};

cppuhelper/source/implbase_ex.cxx

@@ -30,10 +30,13 @@
 
 using namespace ::cppu;
 using namespace ::osl;
-using namespace ::rtl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 
+using rtl::OString;
+using rtl::OUString;
+using rtl::OUStringBuffer;
+
 namespace cppu
 {
 

cppuhelper/source/implementationentry.cxx

@@ -20,11 +20,13 @@
 #include <cppuhelper/implementationentry.hxx>
 #include <rtl/ustrbuf.hxx>
 
-using namespace ::rtl;
 using namespace ::com::sun::star::uno;
 using namespace ::com::sun::star::lang;
 using namespace ::com::sun::star::registry;
 
+using rtl::OUString;
+using rtl::OUStringBuffer;
+
 namespace cppu {
 
 sal_Bool component_writeInfoHelper(

cppuhelper/source/macro_expander.cxx

@@ -38,12 +38,13 @@
 #define SERVICE_NAME_B "com.sun.star.lang.BootstrapMacroExpander"
 #define IMPL_NAME "com.sun.star.lang.comp.cppuhelper.BootstrapMacroExpander"
 
-
-using namespace ::rtl;
 using namespace ::osl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 
+using rtl::Bootstrap;
+using rtl::OUString;
+
 namespace cppu
 {
 

cppuhelper/source/shlib.cxx

@@ -43,12 +43,14 @@
 #include <osl/detail/ios-bootstrap.h>
 #endif
 
-
-using namespace ::rtl;
 using namespace ::osl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 
+using rtl::OString;
+using rtl::OUString;
+using rtl::OUStringBuffer;
+
 namespace cppu
 {
 

cppuhelper/source/tdmgr.cxx

@@ -51,11 +51,11 @@
 
 #include "boost/scoped_array.hpp"
 
-using namespace ::rtl;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::uno;
 using namespace ::com::sun::star::reflection;
 
+using rtl::OUString;
 
 namespace cppu
 {