From 4cc70cb73ce5139b406fef1ed1e03ab1148e8174 Mon Sep 17 00:00:00 2001
From: Alex <aleksandrosansan@gmail.com>
Date: Wed, 31 May 2023 14:10:57 +0000
Subject: [PATCH] Optimize

---
 code/AssetLib/Obj/ObjFileParser.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/code/AssetLib/Obj/ObjFileParser.cpp b/code/AssetLib/Obj/ObjFileParser.cpp
index 38fc0533e..432023264 100644
--- a/code/AssetLib/Obj/ObjFileParser.cpp
+++ b/code/AssetLib/Obj/ObjFileParser.cpp
@@ -456,8 +456,16 @@ void ObjFileParser::getFace(aiPrimitiveType type) {
             iPos = 0;
         } else {
             //OBJ USES 1 Base ARRAYS!!!!
-            std::string number(&(*m_DataIt), m_DataItEnd - m_DataIt);
-            const int iVal(::atoi(number.c_str()));
+            int iVal;
+            auto end = m_DataIt;
+            while (end < m_DataItEnd && *end != '\0')
+                ++end;
+            if (end != m_DataItEnd) {
+                iVal = ::atoi(&(*m_DataIt));
+            } else {
+                std::string number(&(*m_DataIt), m_DataItEnd - m_DataIt);
+                iVal = ::atoi(number.c_str());
+            }
 
             // increment iStep position based off of the sign and # of digits
             int tmp = iVal;