2009-06-03 Basile Starynkevitch <basile@starynkevitch.net>

	MELT branch merged with trunk r148111



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@148114 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 48 insertions, 15 deletions

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 850979abb9a..69d3617d6e8 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,19 @@
+2009-05-30  Eli Zaretskii  <eliz@gnu.org>
+
+	* snprintf.c: Doc fix.
+
+	* vsnprintf.c: Doc fix.
+
+2009-05-29  Kai Tietz  <kai.tietz@onevision.com>
+
+        * pex-win32.c (pex_win32_fdopenr): Set INHERIT to false.
+
+2009-05-29  Michael Matz  <matz@suse.de>
+
+	* fibheap.c (fibheap_replace_key_data): Make sure we don't early
+	out when forcing the minimum.
+	(fibheap_delete_node): Assert that we managed to force the minimum.
+
 2009-05-25  Tristan Gingold  <gingold@adacore.com>
 
 	* config.h-vms: Rewritten.  Define configure macros.
diff --git a/libiberty/fibheap.c b/libiberty/fibheap.c
index c032149c0c2..a37ee4ef270 100644
--- a/libiberty/fibheap.c
+++ b/libiberty/fibheap.c
@@ -214,7 +214,10 @@ fibheap_replace_key_data (fibheap_t heap, fibnode_t node,
   node->key = key;
   y = node->parent;
 
-  if (okey == key)
+  /* Short-circuit if the key is the same, as we then don't have to
+     do anything.  Except if we're trying to force the new node to
+     be the new minimum for delete.  */
+  if (okey == key && okey != FIBHEAPKEY_MIN)
     return odata;
 
   /* These two compares are specifically <= 0 to make sure that in the case
@@ -256,6 +259,11 @@ fibheap_delete_node (fibheap_t heap, fibnode_t node)
 
   /* To perform delete, we just make it the min key, and extract.  */
   fibheap_replace_key (heap, node, FIBHEAPKEY_MIN);
+  if (node != heap->min)
+    {
+      fprintf (stderr, "Can't force minimum on fibheap.\n");
+      abort ();
+    }
   fibheap_extract_min (heap);
 
   return ret;
diff --git a/libiberty/pex-win32.c b/libiberty/pex-win32.c
index 91e0bc882ff..44274067482 100644
--- a/libiberty/pex-win32.c
+++ b/libiberty/pex-win32.c
@@ -915,6 +915,11 @@ static FILE *
 pex_win32_fdopenr (struct pex_obj *obj ATTRIBUTE_UNUSED, int fd,
 		   int binary)
 {
+  HANDLE h = (HANDLE) _get_osfhandle (fd);
+  if (h == INVALID_HANDLE_VALUE)
+    return NULL;
+  if (! SetHandleInformation (h, HANDLE_FLAG_INHERIT, 0))
+    return NULL;
   return fdopen (fd, binary ? "rb" : "r");
 }
 
diff --git a/libiberty/snprintf.c b/libiberty/snprintf.c
index f1ba49f980f..36c8e9b3430 100644
--- a/libiberty/snprintf.c
+++ b/libiberty/snprintf.c
@@ -27,13 +27,15 @@ the executable file might be covered by the GNU General Public License. */
 
 @deftypefn Supplemental int snprintf (char *@var{buf}, size_t @var{n}, const char *@var{format}, ...)
 
-This function is similar to sprintf, but it will print at most @var{n}
-characters.  On error the return value is -1, otherwise it returns the
-number of characters that would have been printed had @var{n} been
-sufficiently large, regardless of the actual value of @var{n}.  Note
-some pre-C99 system libraries do not implement this correctly so users
-cannot generally rely on the return value if the system version of
-this function is used.
+This function is similar to @code{sprintf}, but it will write to
+@var{buf} at most @code{@var{n}-1} bytes of text, followed by a
+terminating null byte, for a total of @var{n} bytes.
+On error the return value is -1, otherwise it returns the number of
+bytes, not including the terminating null byte, that would have been
+written had @var{n} been sufficiently large, regardless of the actual
+value of @var{n}.  Note some pre-C99 system libraries do not implement
+this correctly so users cannot generally rely on the return value if
+the system version of this function is used.
 
 @end deftypefn
 
diff --git a/libiberty/vsnprintf.c b/libiberty/vsnprintf.c
index 7df5bd88e52..5470df2223b 100644
--- a/libiberty/vsnprintf.c
+++ b/libiberty/vsnprintf.c
@@ -27,13 +27,15 @@ the executable file might be covered by the GNU General Public License. */
 
 @deftypefn Supplemental int vsnprintf (char *@var{buf}, size_t @var{n}, const char *@var{format}, va_list @var{ap})
 
-This function is similar to vsprintf, but it will print at most
-@var{n} characters.  On error the return value is -1, otherwise it
-returns the number of characters that would have been printed had
-@var{n} been sufficiently large, regardless of the actual value of
-@var{n}.  Note some pre-C99 system libraries do not implement this
-correctly so users cannot generally rely on the return value if the
-system version of this function is used.
+This function is similar to @code{vsprintf}, but it will write to
+@var{buf} at most @code{@var{n}-1} bytes of text, followed by a
+terminating null byte, for a total of @var{n} bytes.  On error the
+return value is -1, otherwise it returns the number of characters that
+would have been printed had @var{n} been sufficiently large,
+regardless of the actual value of @var{n}.  Note some pre-C99 system
+libraries do not implement this correctly so users cannot generally
+rely on the return value if the system version of this function is
+used.
 
 @end deftypefn