add o3tl::toUInt32

Change-Id: I07f11bf12fbe1d1c2d812fa0965d6e632e1e1aba
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133437
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

30 files changed, 86 insertions, 55 deletions

diff --git a/chart2/source/tools/InternalDataProvider.cxx b/chart2/source/tools/InternalDataProvider.cxx
index 010e3c202924..8508c8453c70 100644
--- a/chart2/source/tools/InternalDataProvider.cxx
+++ b/chart2/source/tools/InternalDataProvider.cxx
@@ -887,7 +887,7 @@ Sequence< uno::Any > SAL_CALL InternalDataProvider::getDataByRangeRepresentation
 
     if( aRange.match( lcl_aLabelRangePrefix ) )
     {
-        auto nIndex = aRange.copy( strlen(lcl_aLabelRangePrefix)).toUInt32();
+        auto nIndex = o3tl::toUInt32(aRange.subView( strlen(lcl_aLabelRangePrefix)));
         vector< uno::Any > aComplexLabel = m_bDataInColumns
             ? m_aInternalData.getComplexColumnLabel( nIndex )
             : m_aInternalData.getComplexRowLabel( nIndex );
@@ -896,7 +896,7 @@ Sequence< uno::Any > SAL_CALL InternalDataProvider::getDataByRangeRepresentation
     }
     else if( aRange.match( lcl_aCategoriesPointRangeNamePrefix ) )
     {
-        auto nPointIndex = aRange.copy( strlen(lcl_aCategoriesPointRangeNamePrefix) ).toUInt32();
+        auto nPointIndex = o3tl::toUInt32(aRange.subView( strlen(lcl_aCategoriesPointRangeNamePrefix) ));
         vector< uno::Any > aComplexCategory = m_bDataInColumns
             ? m_aInternalData.getComplexRowLabel( nPointIndex )
             : m_aInternalData.getComplexColumnLabel( nPointIndex );
diff --git a/comphelper/source/misc/sequenceashashmap.cxx b/comphelper/source/misc/sequenceashashmap.cxx
index 21a7f0971b94..0f15823651f9 100644
--- a/comphelper/source/misc/sequenceashashmap.cxx
+++ b/comphelper/source/misc/sequenceashashmap.cxx
@@ -80,7 +80,7 @@ uno::Any jsonToUnoAny(const boost::property_tree::ptree& aTree)
             else if (aTypeClass == uno::TypeClass_SHORT)
                 aAny <<= static_cast<sal_Int16>(o3tl::toInt32(rValue));
             else if (aTypeClass == uno::TypeClass_UNSIGNED_SHORT)
-                aAny <<= static_cast<sal_uInt16>(OString(rValue.c_str()).toUInt32());
+                aAny <<= static_cast<sal_uInt16>(o3tl::toUInt32(rValue));
             else if (aTypeClass == uno::TypeClass_LONG)
                 aAny <<= o3tl::toInt32(rValue);
             else if (aTypeClass == uno::TypeClass_UNSIGNED_LONG)
@@ -331,7 +331,7 @@ std::vector<css::beans::PropertyValue> JsonToPropertyValues(const OString& rJson
         else if (rType == "short")
             aValue.Value <<= sal_Int16(o3tl::toInt32(rValue));
         else if (rType == "unsigned short")
-            aValue.Value <<= sal_uInt16(OString(rValue.c_str()).toUInt32());
+            aValue.Value <<= sal_uInt16(o3tl::toUInt32(rValue));
         else if (rType == "int64")
             aValue.Value <<= o3tl::toInt64(rValue);
         else if (rType == "int32")
@@ -341,9 +341,9 @@ std::vector<css::beans::PropertyValue> JsonToPropertyValues(const OString& rJson
         else if (rType == "uint64")
             aValue.Value <<= OString(rValue.c_str()).toUInt64();
         else if (rType == "uint32")
-            aValue.Value <<= OString(rValue.c_str()).toUInt32();
+            aValue.Value <<= o3tl::toUInt32(rValue);
         else if (rType == "uint16")
-            aValue.Value <<= sal_uInt16(OString(rValue.c_str()).toUInt32());
+            aValue.Value <<= sal_uInt16(o3tl::toUInt32(rValue));
         else if (rType == "[]byte")
         {
             aNodeValue = rPair.second.get_child("value", aNodeNull);
diff --git a/compilerplugins/clang/stringview.cxx b/compilerplugins/clang/stringview.cxx
index bcb8b79eded6..e1cac4195265 100644
--- a/compilerplugins/clang/stringview.cxx
+++ b/compilerplugins/clang/stringview.cxx
@@ -376,10 +376,10 @@ bool StringView::VisitCXXMemberCallExpr(CXXMemberCallExpr const* expr)
         || tc.Class("OString").Namespace("rtl").GlobalNamespace())
     {
         auto const dc = loplugin::DeclCheck(expr->getMethodDecl());
-        if (dc.Function("toInt32") || dc.Function("toInt64") || dc.Function("toDouble")
-            || dc.Function("equalsIgnoreAsciiCase") || dc.Function("compareToIgnoreAsciiCase")
-            || dc.Function("trim") || dc.Function("startsWith") || dc.Function("endsWith")
-            || dc.Function("match"))
+        if (dc.Function("toInt32") || dc.Function("toUInt32") || dc.Function("toInt64")
+            || dc.Function("toDouble") || dc.Function("equalsIgnoreAsciiCase")
+            || dc.Function("compareToIgnoreAsciiCase") || dc.Function("trim")
+            || dc.Function("startsWith") || dc.Function("endsWith") || dc.Function("match"))
         {
             handleSubExprThatCouldBeView(expr->getImplicitObjectArgument());
         }
diff --git a/compilerplugins/clang/stringviewparam.cxx b/compilerplugins/clang/stringviewparam.cxx
index 42595e887e45..a20691a3a4d1 100644
--- a/compilerplugins/clang/stringviewparam.cxx
+++ b/compilerplugins/clang/stringviewparam.cxx
@@ -139,7 +139,7 @@ DeclRefExpr const* relevantCXXMemberCallExpr(CXXMemberCallExpr const* expr)
         auto const n = i->getName();
         if (n == "endsWith" || n == "isEmpty" || n == "startsWith" || n == "subView"
             || n == "indexOf" || n == "lastIndexOf" || n == "compareTo" || n == "match"
-            || n == "trim" || n == "toInt32" || n == "toInt64" || n == "toDouble"
+            || n == "trim" || n == "toInt32" || n == "toUInt32" || n == "toInt64" || n == "toDouble"
             || n == "equalsIgnoreAsciiCase" || n == "compareToIgnoreAsciiCase" || n == "getToken"
             || n == "copy")
         {
diff --git a/formula/source/core/api/FormulaCompiler.cxx b/formula/source/core/api/FormulaCompiler.cxx
index 80065f2bc855..560377d0d5d5 100644
--- a/formula/source/core/api/FormulaCompiler.cxx
+++ b/formula/source/core/api/FormulaCompiler.cxx
@@ -23,6 +23,7 @@
 #include <formula/errorcodes.hxx>
 #include <formula/token.hxx>
 #include <formula/tokenarray.hxx>
+#include <o3tl/string_view.hxx>
 #include <core_resource.hxx>
 #include <core_resource.hrc>
 
@@ -1234,7 +1235,7 @@ FormulaError FormulaCompiler::GetErrorConstant( const OUString& rName ) const
         // digits.
         if (rName.startsWithIgnoreAsciiCase("#ERR") && rName.getLength() <= 10 && rName[rName.getLength()-1] == '!')
         {
-            sal_uInt32 nErr = rName.copy( 4, rName.getLength() - 5).toUInt32();
+            sal_uInt32 nErr = o3tl::toUInt32(rName.subView( 4, rName.getLength() - 5));
             if (0 < nErr && nErr <= SAL_MAX_UINT16 && isPublishedFormulaError(static_cast<FormulaError>(nErr)))
                 nError = static_cast<FormulaError>(nErr);
         }
diff --git a/i18nutil/source/utility/unicode.cxx b/i18nutil/source/utility/unicode.cxx
index be34ea58f44a..5e479989eae9 100644
--- a/i18nutil/source/utility/unicode.cxx
+++ b/i18nutil/source/utility/unicode.cxx
@@ -26,6 +26,7 @@
 #include <unicode/numfmt.h>
 #include "unicode_data.h"
 #include <rtl/character.hxx>
+#include <o3tl/string_view.hxx>
 #include <memory>
 
 // Workaround for glibc braindamage:
@@ -1019,7 +1020,7 @@ OUString ToggleUnicodeCodepoint::StringToReplace()
         sIn = maInput.toString();
     while( nUPlus != -1 )
     {
-        nUnicode = sIn.copy(0, nUPlus).toUInt32(16);
+        nUnicode = o3tl::toUInt32(sIn.subView(0, nUPlus), 16);
         //prevent creating control characters or invalid Unicode values
         if( !rtl::isUnicodeCodePoint(nUnicode) || nUnicode < 0x20  )
             maInput = sIn.subView(nUPlus);
@@ -1062,7 +1063,7 @@ OUString ToggleUnicodeCodepoint::ReplacementString()
         }
         while( nUPlus > 0 )
         {
-            nUnicode = sIn.copy(0, nUPlus).toUInt32(16);
+            nUnicode = o3tl::toUInt32(sIn.subView(0, nUPlus), 16);
             output.appendUtf32( nUnicode );
 
             sIn = sIn.copy(nUPlus+2);
diff --git a/include/o3tl/string_view.hxx b/include/o3tl/string_view.hxx
index 2438500768fe..6138f5c09c88 100644
--- a/include/o3tl/string_view.hxx
+++ b/include/o3tl/string_view.hxx
@@ -424,6 +424,22 @@ inline sal_Int32 toInt32(std::string_view str, sal_Int16 radix = 10)
     return n;
 }
 
+// Like OString::toUInt32, but for std::string_view:
+inline sal_uInt32 toUInt32(std::u16string_view str, sal_Int16 radix = 10)
+{
+    sal_Int64 n = rtl_ustr_toInt64_WithLength(str.data(), radix, str.size());
+    if (n < 0 || n > SAL_MAX_UINT32)
+        n = 0;
+    return n;
+}
+inline sal_uInt32 toUInt32(std::string_view str, sal_Int16 radix = 10)
+{
+    sal_Int64 n = rtl_str_toInt64_WithLength(str.data(), radix, str.size());
+    if (n < 0 || n > SAL_MAX_UINT32)
+        n = 0;
+    return n;
+}
+
 // Like OString::toInt64, but for std::string_view:
 inline sal_Int64 toInt64(std::u16string_view str, sal_Int16 radix = 10)
 {
diff --git a/include/oox/helper/attributelist.hxx b/include/oox/helper/attributelist.hxx
index 511b00fce2a2..27101657f140 100644
--- a/include/oox/helper/attributelist.hxx
+++ b/include/oox/helper/attributelist.hxx
@@ -69,7 +69,7 @@ public:
     static sal_Int64    decodeHyper( std::u16string_view rValue );
 
     /** Returns the 32-bit signed integer value from the passed string (hexadecimal). */
-    static sal_Int32    decodeIntegerHex( const OUString& rValue );
+    static sal_Int32    decodeIntegerHex( std::u16string_view rValue );
 };
 
 
diff --git a/oox/source/helper/attributelist.cxx b/oox/source/helper/attributelist.cxx
index 6afab21c33d8..e0bea17c22e6 100644
--- a/oox/source/helper/attributelist.cxx
+++ b/oox/source/helper/attributelist.cxx
@@ -120,11 +120,11 @@ sal_Int64 AttributeConversion::decodeHyper( std::u16string_view rValue )
     return o3tl::toInt64(rValue);
 }
 
-sal_Int32 AttributeConversion::decodeIntegerHex( const OUString& rValue )
+sal_Int32 AttributeConversion::decodeIntegerHex( std::u16string_view rValue )
 {
     // It looks like all Office Open XML attributes containing hexadecimal
     // values are based on xsd:hexBinary and so use an unsigned representation:
-    return static_cast< sal_Int32 >(rValue.toUInt32( 16 ));
+    return static_cast< sal_Int32 >(o3tl::toUInt32(rValue, 16));
         //TODO: Change this function to return sal_uInt32 and get rid of the
         // cast, but that will have a ripple effect
 }
diff --git a/oox/source/ppt/comments.cxx b/oox/source/ppt/comments.cxx
index a255dd010950..73b78c34459a 100644
--- a/oox/source/ppt/comments.cxx
+++ b/oox/source/ppt/comments.cxx
@@ -35,10 +35,10 @@ void Comment::setDateTime(const OUString& sDateTime)
 {
     sal_Int32 nIdx{ 0 };
     aDateTime.Year = o3tl::toInt32(o3tl::getToken(sDateTime, 0, '-', nIdx));
-    aDateTime.Month = sDateTime.getToken(0, '-', nIdx).toUInt32();
-    aDateTime.Day = sDateTime.getToken(0, 'T', nIdx).toUInt32();
-    aDateTime.Hours = sDateTime.getToken(0, ':', nIdx).toUInt32();
-    aDateTime.Minutes = sDateTime.getToken(0, ':', nIdx).toUInt32();
+    aDateTime.Month = o3tl::toUInt32(o3tl::getToken(sDateTime, 0, '-', nIdx));
+    aDateTime.Day = o3tl::toUInt32(o3tl::getToken(sDateTime, 0, 'T', nIdx));
+    aDateTime.Hours = o3tl::toUInt32(o3tl::getToken(sDateTime, 0, ':', nIdx));
+    aDateTime.Minutes = o3tl::toUInt32(o3tl::getToken(sDateTime, 0, ':', nIdx));
     double seconds = rtl_math_uStringToDouble(sDateTime.getStr() + nIdx,
                                               sDateTime.getStr() + sDateTime.getLength(), '.', 0,
                                               nullptr, nullptr);
diff --git a/oox/source/vml/vmlformatting.cxx b/oox/source/vml/vmlformatting.cxx
index e195a1e94183..f3b29150b1b6 100644
--- a/oox/source/vml/vmlformatting.cxx
+++ b/oox/source/vml/vmlformatting.cxx
@@ -246,16 +246,16 @@ Color ConversionHelper::decodeColor( const GraphicHelper& rGraphicHelper,
     // RGB colors in the format '#RRGGBB'
     if( (aColorName.getLength() == 7) && (aColorName[ 0 ] == '#') )
     {
-        aDmlColor.setSrgbClr( aColorName.copy( 1 ).toUInt32( 16 ) );
+        aDmlColor.setSrgbClr( o3tl::toUInt32(aColorName.subView( 1 ), 16) );
         return aDmlColor;
     }
 
     // RGB colors in the format '#RGB'
     if( (aColorName.getLength() == 4) && (aColorName[ 0 ] == '#') )
     {
-        sal_Int32 nR = aColorName.copy( 1, 1 ).toUInt32( 16 ) * 0x11;
-        sal_Int32 nG = aColorName.copy( 2, 1 ).toUInt32( 16 ) * 0x11;
-        sal_Int32 nB = aColorName.copy( 3, 1 ).toUInt32( 16 ) * 0x11;
+        sal_Int32 nR = o3tl::toUInt32(aColorName.subView( 1, 1 ), 16 ) * 0x11;
+        sal_Int32 nG = o3tl::toUInt32(aColorName.subView( 2, 1 ), 16 ) * 0x11;
+        sal_Int32 nB = o3tl::toUInt32(aColorName.subView( 3, 1 ), 16 ) * 0x11;
         aDmlColor.setSrgbClr( (nR << 16) | (nG << 8) | nB );
         return aDmlColor;
     }
diff --git a/oox/source/vml/vmlshape.cxx b/oox/source/vml/vmlshape.cxx
index 188e3303449c..4e2e6e2d224e 100644
--- a/oox/source/vml/vmlshape.cxx
+++ b/oox/source/vml/vmlshape.cxx
@@ -119,7 +119,7 @@ sal_Int32 lclConvertCrop(const OUString& rCrop, sal_uInt32 nSize)
     if (rCrop.endsWith("f"))
     {
         // Numeric value is specified in 1/65536-ths.
-        sal_uInt32 nCrop = rCrop.copy(0, rCrop.getLength() - 1).toUInt32();
+        sal_uInt32 nCrop = o3tl::toUInt32(rCrop.subView(0, rCrop.getLength() - 1));
         return (nCrop * nSize) / 65536;
     }
 
diff --git a/sc/source/filter/oox/drawingfragment.cxx b/sc/source/filter/oox/drawingfragment.cxx
index 033720a1bf1e..adf499d996f3 100644
--- a/sc/source/filter/oox/drawingfragment.cxx
+++ b/sc/source/filter/oox/drawingfragment.cxx
@@ -45,6 +45,7 @@
 #include <oox/vml/vmlshape.hxx>
 #include <oox/vml/vmlshapecontainer.hxx>
 #include <osl/diagnose.h>
+#include <o3tl/string_view.hxx>
 #include <formulaparser.hxx>
 #include <stylesbuffer.hxx>
 #include <themebuffer.hxx>
@@ -703,14 +704,14 @@ sal_uInt32 VmlDrawing::convertControlTextColor( const OUString& rTextColor ) con
     {
         // RGB colors in the format '#RRGGBB'
         if( rTextColor.getLength() == 7 )
-            return OleHelper::encodeOleColor( rTextColor.copy( 1 ).toUInt32( 16 ) );
+            return OleHelper::encodeOleColor( o3tl::toUInt32(rTextColor.subView( 1 ), 16) );
 
         // RGB colors in the format '#RGB'
         if( rTextColor.getLength() == 4 )
         {
-            sal_Int32 nR = rTextColor.copy( 1, 1 ).toUInt32( 16 ) * 0x11;
-            sal_Int32 nG = rTextColor.copy( 2, 1 ).toUInt32( 16 ) * 0x11;
-            sal_Int32 nB = rTextColor.copy( 3, 1 ).toUInt32( 16 ) * 0x11;
+            sal_Int32 nR = o3tl::toUInt32(rTextColor.subView( 1, 1 ), 16) * 0x11;
+            sal_Int32 nG = o3tl::toUInt32(rTextColor.subView( 2, 1 ), 16) * 0x11;
+            sal_Int32 nB = o3tl::toUInt32(rTextColor.subView( 3, 1 ), 16) * 0x11;
             return OleHelper::encodeOleColor( (nR << 16) | (nG << 8) | nB );
         }
 
diff --git a/sc/source/ui/view/cellsh1.cxx b/sc/source/ui/view/cellsh1.cxx
index 943df5b926ff..ca337a557cd1 100644
--- a/sc/source/ui/view/cellsh1.cxx
+++ b/sc/source/ui/view/cellsh1.cxx
@@ -94,6 +94,7 @@
 #include <com/sun/star/beans/XPropertySet.hpp>
 #include <com/sun/star/uno/XComponentContext.hpp>
 #include <cppuhelper/bootstrap.hxx>
+#include <o3tl/string_view.hxx>
 
 #include <memory>
 
@@ -149,7 +150,7 @@ OUString FlagsToString( InsertDeleteFlags nFlags,
     return aFlagsStr;
 }
 
-void SetTabNoAndCursor( const ScViewData& rViewData, const OUString& rCellId )
+void SetTabNoAndCursor( const ScViewData& rViewData, std::u16string_view rCellId )
 {
     ScTabViewShell* pTabViewShell = rViewData.GetViewShell();
     assert(pTabViewShell);
@@ -157,7 +158,7 @@ void SetTabNoAndCursor( const ScViewData& rViewData, const OUString& rCellId )
     std::vector<sc::NoteEntry> aNotes;
     rDoc.GetAllNoteEntries(aNotes);
 
-    sal_uInt32 nId = rCellId.toUInt32();
+    sal_uInt32 nId = o3tl::toUInt32(rCellId);
     auto lComp = [nId](const sc::NoteEntry& rNote) { return rNote.mpNote->GetId() == nId; };
 
     const auto& aFoundNoteIt = std::find_if(aNotes.begin(), aNotes.end(), lComp);
diff --git a/sd/source/filter/eppt/pptexanimations.cxx b/sd/source/filter/eppt/pptexanimations.cxx
index 74ef8cd96619..bbab0ed2d8b9 100644
--- a/sd/source/filter/eppt/pptexanimations.cxx
+++ b/sd/source/filter/eppt/pptexanimations.cxx
@@ -59,6 +59,7 @@
 #include <osl/diagnose.h>
 #include <tools/debug.hxx>
 #include <tools/diagnose_ex.h>
+#include <o3tl/string_view.hxx>
 
 #include <algorithm>
 
@@ -890,8 +891,8 @@ sal_uInt32 AnimationExporter::GetPresetID( const OUString& rPreset, sal_uInt32 n
         sal_Int32 nLast = rPreset.lastIndexOf( '_' );
         if ( ( nLast != -1 ) && ( ( nLast + 1 ) < rPreset.getLength() ) )
         {
-            OUString aNumber( rPreset.copy( nLast + 1 ) );
-            nPresetId = aNumber.toUInt32();
+            std::u16string_view aNumber( rPreset.subView( nLast + 1 ) );
+            nPresetId = o3tl::toUInt32(aNumber);
             bPresetId = true;
         }
     }
diff --git a/sd/source/ui/dlg/copydlg.cxx b/sd/source/ui/dlg/copydlg.cxx
index 66a13be8ed74..70ccf9c4b9be 100644
--- a/sd/source/ui/dlg/copydlg.cxx
+++ b/sd/source/ui/dlg/copydlg.cxx
@@ -169,8 +169,8 @@ void CopyDlg::Reset()
         m_xMtrFldAngle->set_value(o3tl::toInt64(o3tl::getToken(aStr, 0, TOKEN, nIdx)), FieldUnit::NONE);
         m_xMtrFldWidth->set_value(o3tl::toInt64(o3tl::getToken(aStr, 0, TOKEN, nIdx)), FieldUnit::NONE);
         m_xMtrFldHeight->set_value(o3tl::toInt64(o3tl::getToken(aStr, 0, TOKEN, nIdx)), FieldUnit::NONE);
-        m_xLbStartColor->SelectEntry( Color( ColorTransparency, aStr.getToken(0, TOKEN, nIdx).toUInt32() ) );
-        m_xLbEndColor->SelectEntry( Color( ColorTransparency, aStr.getToken(0, TOKEN, nIdx).toUInt32() ) );
+        m_xLbStartColor->SelectEntry( Color( ColorTransparency, o3tl::toUInt32(o3tl::getToken(aStr, 0, TOKEN, nIdx)) ) );
+        m_xLbEndColor->SelectEntry( Color( ColorTransparency, o3tl::toUInt32(o3tl::getToken(aStr, 0, TOKEN, nIdx)) ) );
     }
 
 }
diff --git a/sfx2/source/doc/SfxRedactionHelper.cxx b/sfx2/source/doc/SfxRedactionHelper.cxx
index 28cf18d94ebf..34643e721478 100644
--- a/sfx2/source/doc/SfxRedactionHelper.cxx
+++ b/sfx2/source/doc/SfxRedactionHelper.cxx
@@ -55,6 +55,7 @@
 #include <vcl/metaact.hxx>
 #include <vcl/outdev.hxx>
 #include <vcl/vcllayout.hxx>
+#include <o3tl/string_view.hxx>
 
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::lang;
@@ -543,7 +544,7 @@ void SfxRedactionHelper::fillSearchOptions(i18nutil::SearchOptions2& rSearchOpt,
     rSearchOpt.Locale = GetAppLanguageTag().getLocale();
     if (rTarget.sType == RedactionTargetType::REDACTION_TARGET_PREDEFINED)
     {
-        auto nPredefIndex = rTarget.sContent.getToken(0, ';').toUInt32();
+        auto nPredefIndex = o3tl::toUInt32(o3tl::getToken(rTarget.sContent, 0, ';'));
         rSearchOpt.searchString = m_aPredefinedTargets[nPredefIndex];
     }
     else
diff --git a/svl/source/passwordcontainer/passwordcontainer.cxx b/svl/source/passwordcontainer/passwordcontainer.cxx
index 66cfda5e9aad..6a2537a56bda 100644
--- a/svl/source/passwordcontainer/passwordcontainer.cxx
+++ b/svl/source/passwordcontainer/passwordcontainer.cxx
@@ -29,6 +29,7 @@
 #include <comphelper/processfactory.hxx>
 #include <comphelper/propertyvalue.hxx>
 #include <comphelper/sequence.hxx>
+#include <o3tl/string_view.hxx>
 #include <com/sun/star/beans/PropertyValue.hpp>
 #include <com/sun/star/task/InteractionHandler.hpp>
 #include <com/sun/star/task/MasterPasswordRequest.hpp>
@@ -425,7 +426,7 @@ std::vector< OUString > PasswordContainer::DecodePasswords( std::u16string_view
 
             unsigned char code[RTL_DIGEST_LENGTH_MD5];
             for( int ind = 0; ind < RTL_DIGEST_LENGTH_MD5; ind++ )
-                code[ ind ] = static_cast<char>(aMasterPasswd.copy( ind*2, 2 ).toUInt32(16));
+                code[ ind ] = static_cast<char>(o3tl::toUInt32(aMasterPasswd.subView( ind*2, 2 ), 16));
 
             unsigned char iv[RTL_DIGEST_LENGTH_MD5] = {0};
             if (!aIV.empty())
@@ -487,7 +488,7 @@ OUString PasswordContainer::EncodePasswords(const std::vector< OUString >& lines
 
             unsigned char code[RTL_DIGEST_LENGTH_MD5];
             for( int ind = 0; ind < RTL_DIGEST_LENGTH_MD5; ind++ )
-                code[ ind ] = static_cast<char>(aMasterPasswd.copy( ind*2, 2 ).toUInt32(16));
+                code[ ind ] = static_cast<char>(o3tl::toUInt32(aMasterPasswd.subView( ind*2, 2 ), 16));
 
             unsigned char iv[RTL_DIGEST_LENGTH_MD5] = {0};
             if (!aIV.empty())
diff --git a/svx/source/customshapes/EnhancedCustomShape2d.cxx b/svx/source/customshapes/EnhancedCustomShape2d.cxx
index 1aa482769711..1215433044ab 100644
--- a/svx/source/customshapes/EnhancedCustomShape2d.cxx
+++ b/svx/source/customshapes/EnhancedCustomShape2d.cxx
@@ -791,7 +791,7 @@ EnhancedCustomShape2d::EnhancedCustomShape2d(SdrObjCustomShape& rSdrObjCustomSha
             }
             else if (sShapeType.getLength() > 4 && sShapeType.match( "col-" ))
             {
-                nColorData = sShapeType.copy( 4 ).toUInt32( 16 );
+                nColorData = o3tl::toUInt32(sShapeType.subView( 4 ), 16);
             }
         }
         break;
diff --git a/svx/source/gallery2/galbrws2.cxx b/svx/source/gallery2/galbrws2.cxx
index 2e715fa95071..27ba2634d451 100644
--- a/svx/source/gallery2/galbrws2.cxx
+++ b/svx/source/gallery2/galbrws2.cxx
@@ -53,6 +53,7 @@
 #include <memory>
 #include <cppuhelper/implbase.hxx>
 #include <osl/diagnose.h>
+#include <o3tl/string_view.hxx>
 
 GalleryBrowserMode GalleryBrowser2::meInitMode = GALLERYBROWSERMODE_ICON;
 
@@ -112,7 +113,7 @@ private:
     static void Execute( const CommandInfo &rCmdInfo,
                   const css::uno::Sequence< css::beans::PropertyValue > &rArguments );
 
-    void MenuSelectHdl(const OString& rIdent);
+    void MenuSelectHdl(std::string_view rIdent);
     void BackgroundMenuSelectHdl(sal_uInt16 nId);
 public:
     GalleryThemePopup(weld::Widget* pParent,
@@ -286,12 +287,12 @@ void GalleryThemePopup::ExecutePopup(weld::Widget* pParent, const ::Point &rPos)
     MenuSelectHdl(mxPopupMenu->popup_at_rect(pParent, tools::Rectangle(rPos, Size(1,1))));
 }
 
-void GalleryThemePopup::MenuSelectHdl(const OString& rIdent)
+void GalleryThemePopup::MenuSelectHdl(std::string_view rIdent)
 {
-    if (rIdent.isEmpty())
+    if (rIdent.empty())
         return;
 
-    sal_uInt16 nSubMenuId = rIdent.toUInt32();
+    sal_uInt16 nSubMenuId = o3tl::toUInt32(rIdent);
     if (nSubMenuId)
     {
         BackgroundMenuSelectHdl(nSubMenuId-1);
diff --git a/sw/source/filter/ww8/docxattributeoutput.cxx b/sw/source/filter/ww8/docxattributeoutput.cxx
index 9a554b9d4a5c..cd13745d4e43 100644
--- a/sw/source/filter/ww8/docxattributeoutput.cxx
+++ b/sw/source/filter/ww8/docxattributeoutput.cxx
@@ -3471,7 +3471,7 @@ bool DocxAttributeOutput::StartURL( const OUString& rUrl, const OUString& rTarge
                     // Extract <seqname>, the field instruction text has the name quoted.
                     OUString aSequenceName = sMark.copy(0, nPos);
                     // Extract <index>.
-                    sal_uInt32 nIndex = sMark.copy(nPos + 1, sMark.getLength() - nPos - sizeof("|sequence")).toUInt32();
+                    sal_uInt32 nIndex = o3tl::toUInt32(sMark.subView(nPos + 1, sMark.getLength() - nPos - sizeof("|sequence")));
                     std::map<OUString, std::vector<OString> >::iterator it = m_aSeqBookmarksNames.find(aSequenceName);
                     if (it != m_aSeqBookmarksNames.end())
                     {
diff --git a/sw/source/uibase/misc/glosdoc.cxx b/sw/source/uibase/misc/glosdoc.cxx
index 53c4d2df5338..be7b4291e0bd 100644
--- a/sw/source/uibase/misc/glosdoc.cxx
+++ b/sw/source/uibase/misc/glosdoc.cxx
@@ -122,7 +122,7 @@ bool SwGlossaries::FindGroupName(OUString& rGroup)
     for(size_t i = 0; i < nCount; ++i)
     {
         const OUString sTemp( GetGroupName( i ));
-        sal_uInt16 nPath = sTemp.getToken(1, GLOS_DELIM).toUInt32();
+        sal_uInt16 nPath = o3tl::toUInt32(o3tl::getToken(sTemp, 1, GLOS_DELIM));
 
         if (!SWUnoHelper::UCB_IsCaseSensitiveFileName( m_PathArr[nPath] )
              && rSCmp.isEqual( rGroup, sTemp.getToken( 0, GLOS_DELIM) ) )
diff --git a/tools/source/generic/color.cxx b/tools/source/generic/color.cxx
index 5df32719eb2c..0493b5250f62 100644
--- a/tools/source/generic/color.cxx
+++ b/tools/source/generic/color.cxx
@@ -27,6 +27,7 @@
 #include <tools/color.hxx>
 #include <tools/helpers.hxx>
 #include <tools/long.hxx>
+#include <o3tl/string_view.hxx>
 #include <basegfx/color/bcolortools.hxx>
 
 void Color::IncreaseLuminance(sal_uInt8 cLumInc)
@@ -165,7 +166,7 @@ Color Color::STRtoRGB(const OUString& colorname)
 
     switch(colorname.getLength()){
         case 7:
-            col.mValue = colorname.copy(1,6).toUInt32(16);
+            col.mValue = o3tl::toUInt32(colorname.subView(1,6), 16);
             break;
         case 6:
             col.mValue = colorname.toUInt32(16);
diff --git a/vcl/source/filter/ipdf/pdfdocument.cxx b/vcl/source/filter/ipdf/pdfdocument.cxx
index dd6728faff08..3a65d06a1540 100644
--- a/vcl/source/filter/ipdf/pdfdocument.cxx
+++ b/vcl/source/filter/ipdf/pdfdocument.cxx
@@ -18,6 +18,7 @@
 
 #include <comphelper/scopeguard.hxx>
 #include <comphelper/string.hxx>
+#include <o3tl/string_view.hxx>
 #include <rtl/character.hxx>
 #include <rtl/strbuf.hxx>
 #include <rtl/string.hxx>
@@ -114,7 +115,7 @@ sal_uInt32 PDFDocument::GetNextSignature()
         if (!rValue.startsWith(aPrefix))
             continue;
 
-        nRet = std::max(nRet, rValue.copy(aPrefix.getLength()).toUInt32());
+        nRet = std::max(nRet, o3tl::toUInt32(rValue.subView(aPrefix.getLength())));
     }
 
     return nRet + 1;
diff --git a/vcl/source/window/builder.cxx b/vcl/source/window/builder.cxx
index fa7294d2295e..fbbbb678de37 100644
--- a/vcl/source/window/builder.cxx
+++ b/vcl/source/window/builder.cxx
@@ -18,6 +18,7 @@
 #include <comphelper/lok.hxx>
 #include <i18nutil/unicode.hxx>
 #include <jsdialog/enabled.hxx>
+#include <o3tl/string_view.hxx>
 #include <officecfg/Office/Common.hxx>
 #include <osl/module.hxx>
 #include <sal/log.hxx>
@@ -3387,7 +3388,7 @@ namespace
             return vcl::KeyCode(KEY_MULTIPLY, bShift, bMod1, bMod2, bMod3);
         else if (rKey.first.getLength() > 1 && rKey.first[0] == 'F')
         {
-            sal_uInt32 nIndex = rKey.first.copy(1).toUInt32();
+            sal_uInt32 nIndex = o3tl::toUInt32(rKey.first.subView(1));
             assert(nIndex >= 1 && nIndex <= 26);
             return vcl::KeyCode(KEY_F1 + nIndex - 1, bShift, bMod1, bMod2, bMod3);
         }
diff --git a/vcl/source/window/debugevent.cxx b/vcl/source/window/debugevent.cxx
index 94238967164b..f9f6978f0e33 100644
--- a/vcl/source/window/debugevent.cxx
+++ b/vcl/source/window/debugevent.cxx
@@ -8,6 +8,7 @@
  */
 
 #include <comphelper/random.hxx>
+#include <o3tl/string_view.hxx>
 #include <rtl/string.hxx>
 #include <sal/log.hxx>
 #include <vcl/keycodes.hxx>
@@ -260,7 +261,7 @@ DebugEventInjector *DebugEventInjector::getCreate()
     const char *pEvents = getenv("VCL_EVENT_INJECTION");
     if (!pEvents)
         return nullptr;
-    nEvents = OString( pEvents ).toUInt32();
+    nEvents = o3tl::toUInt32( pEvents );
     if (nEvents > 0)
         return new DebugEventInjector( nEvents );
     else
diff --git a/vcl/unx/generic/window/salframe.cxx b/vcl/unx/generic/window/salframe.cxx
index 4b1a00e2eed3..8c2d67c70565 100644
--- a/vcl/unx/generic/window/salframe.cxx
+++ b/vcl/unx/generic/window/salframe.cxx
@@ -52,6 +52,7 @@
 
 #include <sal/macros.h>
 #include <sal/log.hxx>
+#include <o3tl/string_view.hxx>
 #include <com/sun/star/uno/Exception.hpp>
 
 #include <svdata.hxx>
@@ -2916,8 +2917,8 @@ bool X11SalFrame::endUnicodeSequence()
     if( rSeq.getLength() > 1 && rSeq.getLength() < 6 )
     {
         // cut the "u"
-        OUString aNumbers( rSeq.copy( 1 ) );
-        sal_uInt32 nValue = aNumbers.toUInt32( 16 );
+        std::u16string_view aNumbers( rSeq.subView( 1 ) );
+        sal_uInt32 nValue = o3tl::toUInt32(aNumbers, 16);
         if( nValue >= 32 )
         {
             ExtTextInputAttr nTextAttr = ExtTextInputAttr::Underline;
diff --git a/writerfilter/source/dmapper/DomainMapper_Impl.cxx b/writerfilter/source/dmapper/DomainMapper_Impl.cxx
index 5422d261d992..949fafd7252a 100644
--- a/writerfilter/source/dmapper/DomainMapper_Impl.cxx
+++ b/writerfilter/source/dmapper/DomainMapper_Impl.cxx
@@ -6802,7 +6802,7 @@ void DomainMapper_Impl::CloseFieldCommand()
                 case FIELD_SYMBOL:
                 {
                     uno::Reference< text::XTextAppend >  xTextAppend = m_aTextAppendStack.top().xTextAppend;
-                    OUString sSymbol( sal_Unicode( sFirstParam.startsWithIgnoreAsciiCase("0x") ?  sFirstParam.copy(2).toUInt32(16) : sFirstParam.toUInt32() ) );
+                    OUString sSymbol( sal_Unicode( sFirstParam.startsWithIgnoreAsciiCase("0x") ?  o3tl::toUInt32(sFirstParam.subView(2),16) : sFirstParam.toUInt32() ) );
                     OUString sFont;
                     bool bHasFont = lcl_FindInCommand( pContext->GetCommand(), 'f', sFont);
                     if ( bHasFont )
diff --git a/xmlscript/source/xmldlg_imexp/imp_share.hxx b/xmlscript/source/xmldlg_imexp/imp_share.hxx
index 2cc574c01b93..3b52f683b1e0 100644
--- a/xmlscript/source/xmldlg_imexp/imp_share.hxx
+++ b/xmlscript/source/xmldlg_imexp/imp_share.hxx
@@ -36,6 +36,7 @@
 #include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
 #include <osl/diagnose.h>
 #include <rtl/ref.hxx>
+#include <o3tl/string_view.hxx>
 #include <memory>
 #include <vector>
 
@@ -46,7 +47,7 @@ inline sal_Int32 toInt32( OUString const & rStr )
 {
     sal_Int32 nVal;
     if (rStr.getLength() > 2 && rStr[ 0 ] == '0' && rStr[ 1 ] == 'x')
-        nVal = rStr.copy( 2 ).toUInt32( 16 );
+        nVal = o3tl::toUInt32(rStr.subView( 2 ), 16);
     else
         nVal = rStr.toInt32();
     return nVal;
diff --git a/xmlscript/source/xmllib_imexp/imp_share.hxx b/xmlscript/source/xmllib_imexp/imp_share.hxx
index 5178a36a47cd..d9ec1c442402 100644
--- a/xmlscript/source/xmllib_imexp/imp_share.hxx
+++ b/xmlscript/source/xmllib_imexp/imp_share.hxx
@@ -26,6 +26,7 @@
 #include <com/sun/star/xml/input/XRoot.hpp>
 #include <com/sun/star/xml/sax/SAXException.hpp>
 #include <rtl/ref.hxx>
+#include <o3tl/string_view.hxx>
 
 #include <vector>
 
@@ -36,7 +37,7 @@ inline sal_Int32 toInt32( OUString const & rStr )
     sal_Int32 nVal;
     if (rStr.getLength() > 2 && rStr[ 0 ] == '0' && rStr[ 1 ] == 'x')
     {
-        nVal = rStr.copy( 2 ).toUInt32( 16 );
+        nVal = o3tl::toUInt32(rStr.subView( 2 ),  16);
     }
     else
     {