X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5089a0a98b27f5eeee62321dff4f025f1648f025..3900b29f1b0eba8ddc4cbc477dfade991386a7ca:/include/simgrid/Exception.hpp

diff --git a/include/simgrid/Exception.hpp b/include/simgrid/Exception.hpp
index 7f3918f085..ad3498abfe 100644
--- a/include/simgrid/Exception.hpp
+++ b/include/simgrid/Exception.hpp
@@ -162,17 +162,17 @@ class XBT_PUBLIC ParseError : public Exception, public std::invalid_argument {
   int line_;
   std::string file_;
   std::string msg_;
+  char* rendered_what = nullptr;
 
 public:
   ParseError(int line, std::string& file, std::string&& msg)
       : Exception(XBT_THROW_POINT, std::move(msg)), std::invalid_argument(msg), line_(line), file_(file), msg_(msg)
   {
+    rendered_what = bprintf("Parse error at %s:%d: %s", file_.c_str(), line_, msg_.c_str());
   }
+  ~ParseError() { free(rendered_what); }
 
-  const char* what() const noexcept override
-  {
-    return bprintf("Parse error at %s:%d: %s", file_.c_str(), line_, msg_.c_str());
-  }
+  const char* what() const noexcept override { return rendered_what; }
 };
 
 class XBT_PUBLIC ForcefulKillException {