X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fpagealign_alloc.h;h=37aab5f77b78b2dd69c23a4020fc46f130a90db8;hb=4f5d6947d90a65c2b577ef2ca7adf4e413cfe6b6;hp=2d63eb15f21100f540eef3aacc9b035122db1b36;hpb=c49424557579cb46914ba4f080720d8b94abab39;p=gnulib.git

diff --git a/lib/pagealign_alloc.h b/lib/pagealign_alloc.h
index 2d63eb15f..37aab5f77 100644
--- a/lib/pagealign_alloc.h
+++ b/lib/pagealign_alloc.h
@@ -26,12 +26,17 @@
    boundary.
    If SIZE is not a multiple of the system page size, it will be rounded up
    to the next multiple.
-   Return a pointer to the start of the memory block, or NULL if the allocation
-   failed.  */
+   Return a pointer to the start of the memory block. Upon allocation failure,
+   return NULL and set errno.  */
 extern void *pagealign_alloc (size_t size);
 
+/* Like pagealign_alloc, except it exits the program if the allocation
+   fails.  */
+extern void *pagealign_xalloc (size_t size);
+
 /* Free a memory block.
-   PTR must be a pointer returned by pagealign_alloc.  */
+   PTR must be a non-NULL pointer returned by pagealign_alloc or
+   pagealign_xalloc.  */
 extern void pagealign_free (void *ptr);
 
 #endif /* _PAGEALIGN_ALLOC_H */