[PATCH] D28718: [libFuzzer] Avoid undefined behavior. Properly discard output to stdout and stderr.

[Zachary Turner via Phabricator via llvm-commits]

zturner added inline comments.


================
Comment at: lib/Fuzzer/FuzzerIOPosix.cpp:80
+  FILE* Temp = fopen("/dev/null", "w");
+  if (!Temp)
+    return;
----------------
vitalybuka wrote:
> Why not just use CloseFile on Posix if it works?
I think it was just working on accident, seems like writing to a closed file descriptor is always wrong, even if you get lucky and it "works".


Repository:
  rL LLVM

https://reviews.llvm.org/D28718