From 77961bf9a4886bddc3ab567aeb1093943ff816ca Mon Sep 17 00:00:00 2001
From: Pavel Belikov <pavel.fuchs.belikov@gmail.com>
Date: Tue, 25 Jun 2019 21:43:00 +0300
Subject: Fixes #75 : Check istringstream state in ValueParser

---
 args.hxx | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'args.hxx')

diff --git a/args.hxx b/args.hxx
index 09c1919..563169c 100644
--- a/args.hxx
+++ b/args.hxx
@@ -3256,9 +3256,14 @@ namespace args
         operator ()(const std::string &name, const std::string &value, T &destination)
         {
             std::istringstream ss(value);
-            ss >> destination >> std::ws;
+            bool failed = !(ss >> destination);
 
-            if (ss.rdbuf()->in_avail() > 0)
+            if (!failed)
+            {
+                ss >> std::ws;
+            }
+
+            if (ss.rdbuf()->in_avail() > 0 || failed)
             {
 #ifdef ARGS_NOEXCEPT
                 (void)name;
-- 
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