1 files changed, 3 insertions, 3 deletions
diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp
index fec2d6f..41441df 100644
--- a/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp
+++ b/lldb/source/Plugins/Language/CPlusPlus/LibCxxMap.cpp
@@ -395,12 +395,12 @@ lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::Update() {
 
 llvm::Expected<size_t> lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::
     GetIndexOfChildWithName(ConstString name) {
-  size_t idx = ExtractIndexFromString(name.GetCString());
-  if (idx == UINT32_MAX) {
+  auto optional_idx = formatters::ExtractIndexFromString(name.GetCString());
+  if (!optional_idx) {
     return llvm::createStringError("Type has no child named '%s'",
                                    name.AsCString());
   }
-  return idx;
+  return *optional_idx;
 }
 
 SyntheticChildrenFrontEnd *