From 1677ac0ddb1482bc12bb0db6c0ebfd6a4d9ec419 Mon Sep 17 00:00:00 2001
From: coolbreeze413 <coolbreeze413@yahoo.co.in>
Date: Thu, 30 Jun 2022 18:06:32 +0530
Subject: [PATCH] fix count of ',' logic and clear stringstream for string to
 int conversion

---
 vpr/src/base/read_route.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vpr/src/base/read_route.cpp b/vpr/src/base/read_route.cpp
index 6688db005..bf1d78f51 100644
--- a/vpr/src/base/read_route.cpp
+++ b/vpr/src/base/read_route.cpp
@@ -423,7 +423,7 @@ static void format_ptc_num(std::vector<int>& ptc_nums, std::string ptc_str, Clus
     // detect and remove the parenthesis
     openfpga::StringToken tokenizer0(ptc_str);
     std::vector<std::string> tokens0 = tokenizer0.split(',');
-    size_t ptc_count = tokens0.size() + 1;
+    size_t ptc_count = tokens0.size();
     openfpga::StringToken tokenizer1(ptc_count > 1? format_name(ptc_str) : ptc_str);
 
     // now do the real job
@@ -431,6 +431,7 @@ static void format_ptc_num(std::vector<int>& ptc_nums, std::string ptc_str, Clus
     std::stringstream ptc_stream;
     int num;
     for (size_t i = 0; i < tokens1.size(); i++) {
+        ptc_stream.clear();
         ptc_stream << tokens1[i];
         ptc_stream >> num;
         if (ptc_stream.fail()) {