- Changed how error conditions raised by dos.library file I/O functions

are detected.

- Modified function return values of 0 and -1 to use macros like OK,
  ERROR/SEEK_ERROR instead, to better convey what the purpose of these
  values is.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14922 87f5fb63-7c3d-0410-a384-fd976d0f7a62

library/stdio_setvbuf.c

@@ -1,5 +1,5 @@
 /*
- * $Id: stdio_setvbuf.c,v 1.7 2005-03-18 12:38:23 obarthel Exp $
+ * $Id: stdio_setvbuf.c,v 1.8 2005-04-24 08:46:37 obarthel Exp $
  *
  * :ts=4
  *
@@ -186,7 +186,7 @@ setvbuf(FILE *stream,char *buf,int bufmode,size_t size)
 
 	new_buffer = NULL;
 
-	result = 0;
+	result = OK;
 
  out: