From 6c0b29749cb744ce02f08a528f608a953371d7d3 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 4 May 2005 19:32:53 +0000
Subject: [PATCH] fixed EOVERFLOW handlign after previous commit and also
 explained what's going on

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33949 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/common/string.cpp | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/common/string.cpp b/src/common/string.cpp
index b626fd228f..be45802169 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -1839,19 +1839,22 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)
         // vsnprintf() may return either -1 (traditional Unix behaviour) or the
         // total number of characters which would have been written if the
         // buffer were large enough
-        //
-        // and it may also set errno to EOVERFLOW apparently (which system does
-        // this?)
-        if ( (len >= 0 && len <= size)
-#ifdef EOVERFLOW
-                && errno != EOVERFLOW
-#endif
-            )
+        if ( len >= 0 && len <= size )
         {
             // ok, there was enough space
             break;
         }
 
+#ifdef EOVERFLOW
+        // if the error is not due to not having enough space (it could be e.g.
+        // EILSEQ), break too -- we'd just eat all available memory uselessly
+        if ( errno != EOVERFLOW )
+        {
+            // no sense in continuing
+            break;
+        }
+#endif // EOVERFLOW
+
         // still not enough, double it again
         size *= 2;
     }
-- 
2.45.2