Fix crash on Windows. If input stream is no good, do not try to read a line from it. Return false and an empty line instead...

2009-10-16 11:43:05 -04:00 · 2009-10-16 11:43:05 -04:00 · 9578bfc0ef
parent 023889cb2c
commit 9578bfc0ef
1 changed files with 3 additions and 2 deletions
--- a/Source/kwsys/SystemTools.cxx
+++ b/Source/kwsys/SystemTools.cxx
@ -3959,10 +3959,11 @@ bool SystemTools::GetLineFromStream(kwsys_ios::istream& is,
  line = "";

  long leftToRead = sizeLimit;
-  
+
  // If no characters are read from the stream, the end of file has
  // been reached.  Clear the fail bit just before reading.
-  while(!haveNewline &&
+  while(is &&
+        !haveNewline &&
        leftToRead != 0 &&
        (is.clear(is.rdstate() & ~kwsys_ios::ios::failbit),
         is.getline(buffer, bufferSize), is.gcount() > 0))