Rewrite memmem to guarantee linear complexity without malloc.

[gnulib.git] / lib / freadahead.c

diff --git a/lib/freadahead.c b/lib/freadahead.c
index cf074be..daad290 100644 (file)
--- a/lib/freadahead.c
+++ b/lib/freadahead.c
@@ -56,7 +56,7 @@ freadahead (FILE *fp)
   return 0;
 # endif
 #elif defined __QNX__               /* QNX */
-  if ((fp->_Mode & _MWRITE) != 0)
+  if ((fp->_Mode & 0x2000 /* _MWRITE */) != 0)
     return 0;
   /* fp->_Buf <= fp->_Next <= fp->_Rend */
   return fp->_Rend - fp->_Next;