From eb6e9dde678964aaf923a651e405f01a00eccb91 Mon Sep 17 00:00:00 2001
From: Stuart-Swan <140192252+Stuart-Swan@users.noreply.github.com>
Date: Mon, 16 Sep 2024 14:07:07 -0700
Subject: [PATCH] Update nvhls_array.h

Fix memory leak in make_permanent function.
---
 cmod/include/nvhls_array.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cmod/include/nvhls_array.h b/cmod/include/nvhls_array.h
index bc3bb09c..730ca926 100644
--- a/cmod/include/nvhls_array.h
+++ b/cmod/include/nvhls_array.h
@@ -44,8 +44,9 @@ static const char* make_permanent(const char* s) {
 #ifdef __SYNTHESIS__
   return s;
 #else
-  std::string* str = new std::string(s);  // this is an intentional memory leak..
-  return str->c_str();
+  static std::vector<std::string> vec_str;
+  vec_str.push_back(std::string(s));
+  return vec_str.back().c_str();
 #endif
 }