Fix description of remove() and create() return values.

[pintos-anon] / doc / userprog.texi

diff --git a/doc/userprog.texi b/doc/userprog.texi
index dd3bf12b0a50ced384546a39dd1b0692fd443000..38810e72f4c3bab38e960a6ab6d6cef0145b642f 100644 (file)
--- a/doc/userprog.texi
+++ b/doc/userprog.texi
@@ -191,14 +191,13 @@ directory.  By default, the @file{Makefile} in this directory will
 compile the test programs we provide.  You can edit the
 @file{Makefile} to compile your own test programs as well.
 
-One thing you should realize immediately is that, until you use the
-above operation to copy a test program to the emulated disk, Pintos
-will be unable to do very much useful work.  You will also find that
-you won't be able to do interesting things until you copy a variety of
-programs to the disk.  A useful technique is to create a clean
-reference disk and copy that over whenever you trash your
-@file{fs.dsk} beyond a useful state, which may happen occasionally
-while debugging.
+One thing you should realize immediately is that, until you copy a
+test program to the emulated disk, Pintos will be unable to do very
+much useful work.  You will also find that you won't be able to do
+interesting things until you copy a variety of programs to the disk.
+A useful technique is to create a clean reference disk and copy that
+over whenever you trash your @file{fs.dsk} beyond a useful state,
+which may happen occasionally while debugging.
 
 @node Virtual Memory Layout
 @section Virtual Memory Layout
@@ -359,11 +358,12 @@ be disrupted).
 @item SYS_create
 @itemx bool create (const char *@var{file}, unsigned @var{initial_size})
 Create a new file called @var{file} initially @var{initial_size} bytes
-in size.  Returns -1 if failed, 0 if OK.
+in size.  Returns true if successful, false otherwise.
 
 @item SYS_remove
 @itemx bool remove (const char *@var{file})
-Delete the file called @var{file}.  Returns -1 if failed, 0 if OK.
+Delete the file called @var{file}.  Returns true if successful, false
+otherwise.
 
 @item SYS_open
 @itemx int open (const char *@var{file})