[commit] Fix -Wunused warning in dec-thread.c.

[Joel Brobecker <brobecker@adacore.com>]

From: brobecke <brobecke@f8352e7e-cb20-0410-8ce7-b5d9e71c585c>

Hello,

The compiler complains that the result of a couple of *PTR++ is never
used.  This is because the compiler is tricked by the way the pointer
was defined.  For instance:

  | dec_thread_count_gdb_threads (struct thread_info *ignored, void *context)
  | {
  |   int *count = (int *) context;

The compiler complains that the result is never used for the following
line:

  |   *count++;

The result is stored for the caller to use, so it is in fact potentially
used, but elsewhere...

gdb/ChangeLog:

        * dec-thread.c (dec_thread_count_gdb_threads)
        (dec_thread_add_gdb_thread): Prevent -Wunused warning.

Checked in.

---
 gdb/dec-thread.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/dec-thread.c b/gdb/dec-thread.c
index 5083221..be6db4c 100644
--- a/gdb/dec-thread.c
+++ b/gdb/dec-thread.c
@@ -352,7 +352,7 @@ dec_thread_count_gdb_threads (struct thread_info *ignored, void *context)
 {
   int *count = (int *) context;
 
-  *count++;
+  (void) *count++; /* The cast to void is to prevent a -Wunused warning.  */
   return 0;
 }
 
@@ -366,7 +366,7 @@ dec_thread_add_gdb_thread (struct thread_info *info, void *context)
   struct thread_info ***listp = (struct thread_info ***) context;
   
   **listp = info;
-  *listp++;
+  (void) *listp++; /* The cast to void is to prevent a -Wunused warning.  */
   return 0;
 }
 
-- 
1.6.3.3