Workaround an MSan false positive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175156 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov 2013-02-14 12:18:32 +00:00
parent 58842c4ba1
commit 79e8429e41

View File

@ -224,6 +224,8 @@ static unsigned getColumns(int FileID) {
#if defined(HAVE_SYS_IOCTL_H) && defined(HAVE_TERMIOS_H)
// Try to determine the width of the terminal.
struct winsize ws;
// Zero-fill ws to avoid a false positive from MemorySanitizer.
memset(&ws, 0, sizeof(ws));
if (ioctl(FileID, TIOCGWINSZ, &ws) == 0)
Columns = ws.ws_col;
#endif