From fd49112196637be2cffa771efa64c5738b557358 Mon Sep 17 00:00:00 2001
From: Paul Fultz II <pfultz2@yahoo.com>
Date: Sat, 18 Aug 2018 00:32:30 -0500
Subject: [PATCH] Avoid duplicates in the error path (#1346)

---
 lib/astutils.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/astutils.cpp b/lib/astutils.cpp
index f1695cb68..ab6c8fafd 100644
--- a/lib/astutils.cpp
+++ b/lib/astutils.cpp
@@ -218,7 +218,10 @@ static void followVariableExpressionError(const Token *tok1, const Token *tok2,
         return;
     if (!tok2)
         return;
-    errors->push_back(std::make_pair(tok2, "'" + tok1->str() + "' is assigned value '" + tok2->expressionString() + "' here."));
+    ErrorPathItem item = std::make_pair(tok2, "'" + tok1->str() + "' is assigned value '" + tok2->expressionString() + "' here.");
+    if(std::find(errors->begin(), errors->end(), item) != errors->end())
+        return;
+    errors->push_back(item);
 }
 
 bool isSameExpression(bool cpp, bool macro, const Token *tok1, const Token *tok2, const Library& library, bool pure, ErrorPath* errors)