[llvm] r261614 - Assert when trying to seek un-seekable raw_fd_ostream.

[Yaron Keren via llvm-commits]

Author: yrnkrn
Date: Tue Feb 23 01:17:58 2016
New Revision: 261614

URL: http://llvm.org/viewvc/llvm-project?rev=261614&view=rev
Log:
Assert when trying to seek un-seekable raw_fd_ostream.


Modified:
    llvm/trunk/lib/Support/raw_ostream.cpp

Modified: llvm/trunk/lib/Support/raw_ostream.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/raw_ostream.cpp?rev=261614&r1=261613&r2=261614&view=diff
==============================================================================
--- llvm/trunk/lib/Support/raw_ostream.cpp (original)
+++ llvm/trunk/lib/Support/raw_ostream.cpp Tue Feb 23 01:17:58 2016
@@ -623,6 +623,7 @@ void raw_fd_ostream::close() {
 }
 
 uint64_t raw_fd_ostream::seek(uint64_t off) {
+  assert(SupportsSeeking && "Stream does not support seeking!");
   flush();
   pos = ::lseek(FD, off, SEEK_SET);
   if (pos == (uint64_t)-1)