From 3f4df39ee02c71a6aa3617726615f0978b7ee33c Mon Sep 17 00:00:00 2001
From: mrkraimer <mrkraimer@comcast.net>
Date: Mon, 12 Aug 2019 06:03:55 -0400
Subject: [PATCH] fix issue #62 PvaClientData::parse bug

---
 src/pvaClientData.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pvaClientData.cpp b/src/pvaClientData.cpp
index b503732..56b3e7a 100644
--- a/src/pvaClientData.cpp
+++ b/src/pvaClientData.cpp
@@ -433,6 +433,7 @@ void PvaClientData::parse(const std::vector<std::string> &args)
            continue;
         } 
         PVFieldPtr pvField(pvStructure->getSubField(field));
+        if(!pvField) throw std::runtime_error(messagePrefix + field +" does not exist");
         // look for enumerated structure
         PVEnumerated pvEnumerated;
         bool result = pvEnumerated.attach(pvField);