From 3e84cf013b31c52405a76b8e8778a5991d096290 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Fri, 22 Oct 2021 21:42:45 +0800
Subject: ...

---
 src/common/String.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/common/String.cpp')

diff --git a/src/common/String.cpp b/src/common/String.cpp
index 30f83174..65d303fb 100644
--- a/src/common/String.cpp
+++ b/src/common/String.cpp
@@ -214,11 +214,11 @@ std::string String::ToUtf8() const {
 Index String::IndexFromCodeUnitToCodePoint(Index code_unit_index) const {
   auto iter = CodePointIterator();
   Index result = 0;
-  while (iter.GetPosition() <= code_unit_index && !iter.IsPastEnd()) {
+  while (iter.GetPosition() < code_unit_index && !iter.IsPastEnd()) {
     ++iter;
     ++result;
   }
-  return result - 1;
+  return result;
 }
 
 Index String::IndexFromCodePointToCodeUnit(Index code_point_index) const {
-- 
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