[core] fix type of scopeNameSize

Author: silverweed

core/base/src/TListOfTypes.cxx

@@ -62,7 +62,7 @@ static bool NameExistsElsewhere(const char* name){
    if (lastPos != nullptr) {
       // We have a scope
       const auto enName = lastPos + 1;
-      const auto scopeNameSize = ((Long64_t)lastPos - (Long64_t)name) / sizeof(decltype(*lastPos)) - 1;
+      const size_t scopeNameSize = (lastPos - name) / sizeof(decltype(*lastPos)) - 1;
       std::string scopeName{name, scopeNameSize};
       // We have now an enum name and a scope name
       // We look first in the classes

core/meta/src/TEnum.cxx

@@ -297,7 +297,7 @@ TEnum *TEnum::GetEnum(const char *enumName, ESearchAction sa)
    if (lastPos != enumName) {
       // We have a scope
       const auto enName = lastPos;
-      const auto scopeNameSize = ((Long64_t)lastPos - (Long64_t)enumName) / sizeof(decltype(*lastPos)) - 2;
+      const auto scopeNameSize = (lastPos - enumName) / sizeof(decltype(*lastPos)) - 2;
       std::string scopeName{enumName, scopeNameSize};
       // Three levels of search
       theEnum = searchEnum(scopeName.c_str(), enName, kNone);

core/metacling/src/TCling.cxx

@@ -961,7 +961,7 @@ bool TClingLookupHelper__ExistingTypeCheck(const std::string &tname,
    {
       // We have a scope
       const auto enName = lastPos;
-      const auto scopeNameSize = ((Long64_t)lastPos - (Long64_t)inner) / sizeof(decltype(*lastPos)) - 2;
+      const auto scopeNameSize = (lastPos - inner) / sizeof(decltype(*lastPos)) - 2;
       std::string scopeName{inner, scopeNameSize};
       // Check if the scope is in the list of classes
       if (auto scope = static_cast<TClass *>(gROOT->GetListOfClasses()->FindObject(scopeName.c_str()))) {