From 5a04da2082563d2b1d3e7469dfce1d37831f6942 Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Tue, 7 Apr 2020 16:14:41 -0600
Subject: [PATCH] fix memory leakage in openfpga title

---
 openfpga/src/base/openfpga_title.cpp | 4 ++--
 openfpga/src/base/openfpga_title.h   | 2 +-
 openfpga/src/main.cpp                | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/openfpga/src/base/openfpga_title.cpp b/openfpga/src/base/openfpga_title.cpp
index 41616c8bd..ca39fe2e6 100644
--- a/openfpga/src/base/openfpga_title.cpp
+++ b/openfpga/src/base/openfpga_title.cpp
@@ -8,7 +8,7 @@
  * Generate a string of openfpga title introduction
  * This is mainly used when launching OpenFPGA shell 
  *******************************************************************/
-const char* create_openfpga_title() {
+std::string create_openfpga_title() {
   std::string title;
 
   title += std::string("\n");
@@ -49,5 +49,5 @@ const char* create_openfpga_title() {
   title += std::string("THE SOFTWARE.\n");
   title += std::string("\n");
 
-  return title.c_str();
+  return title;
 }
diff --git a/openfpga/src/base/openfpga_title.h b/openfpga/src/base/openfpga_title.h
index b4826964a..8f4ab1e90 100644
--- a/openfpga/src/base/openfpga_title.h
+++ b/openfpga/src/base/openfpga_title.h
@@ -9,6 +9,6 @@
 /********************************************************************
  * Function declaration
  *******************************************************************/
-const char* create_openfpga_title();
+std::string create_openfpga_title();
 
 #endif
diff --git a/openfpga/src/main.cpp b/openfpga/src/main.cpp
index eb88c2c65..e1f813e9b 100644
--- a/openfpga/src/main.cpp
+++ b/openfpga/src/main.cpp
@@ -48,7 +48,7 @@ int main(int argc, char** argv) {
    */
   openfpga::Shell<OpenfpgaContext> shell("OpenFPGA");
 
-  shell.add_title(create_openfpga_title());
+  shell.add_title(create_openfpga_title().c_str());
 
   /* Add vpr commands */
   openfpga::add_vpr_commands(shell);