# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1345738688 14400
# Node ID a83b7b2f95eef833de412f3155241d8a64e1e127
# Parent  61822c866ba1a01d5dd3ee62dd0c81389b729282
avoid C-style cast warnings from GCC for wait-related macros

* lo-utils.h (octave_wait): New class.
* lo-cutils.h, lo-cutils.c (octave_wifexited, octave_wexitstatus,
octave_wifsignaled, octave_wtermsig, octave_wcoredump,
octave_wifstopped, octave_wstopsig, octave_wifcontinued):
New functions.
* toplev.cc, pager.cc, syscalls.cc: Use octave_wait functions instead
of WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP,
WIFSTOPPED, WSTOPSIG, WIFCONTINUED macros.

diff -r 61822c866ba1 -r a83b7b2f95ee libinterp/corefcn/syscalls.cc
--- a/libinterp/corefcn/syscalls.cc	Thu Aug 23 12:13:59 2012 -0400
+++ b/libinterp/corefcn/syscalls.cc	Thu Aug 23 12:18:08 2012 -0400
@@ -1376,21 +1376,17 @@
 @seealso{waitpid, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = false;
 
-#if defined (WIFEXITED)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WIFEXITED (status);
+        retval = octave_wait::ifexited (status);
       else
         error ("WIFEXITED: STATUS must be an integer");
     }
-#else
-  warning ("WIFEXITED always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1404,21 +1400,17 @@
 @seealso{waitpid, WIFEXITED, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = 0;
 
-#if defined (WEXITSTATUS)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WEXITSTATUS (status);
+        retval = octave_wait::exitstatus (status);
       else
         error ("WEXITSTATUS: STATUS must be an integer");
     }
-#else
-  warning ("WEXITSTATUS always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1431,21 +1423,17 @@
 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = false;
 
-#if defined (WIFSIGNALED)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WIFSIGNALED (status);
+        retval = octave_wait::ifsignaled (status);
       else
         error ("WIFSIGNALED: STATUS must be an integer");
     }
-#else
-  warning ("WIFSIGNALED always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1459,21 +1447,17 @@
 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = 0;
 
-#if defined (WTERMSIG)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WTERMSIG (status);
+        retval = octave_wait::termsig (status);
       else
         error ("WTERMSIG: STATUS must be an integer");
     }
-#else
-  warning ("WTERMSIG always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1489,21 +1473,17 @@
 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = false;
 
-#if defined (WCOREDUMP)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WCOREDUMP (status);
+        retval = octave_wait::coredump (status);
       else
         error ("WCOREDUMP: STATUS must be an integer");
     }
-#else
-  warning ("WCOREDUMP always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1518,21 +1498,17 @@
 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WSTOPSIG, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = false;
 
-#if defined (WIFSTOPPED)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WIFSTOPPED (status);
+        retval = octave_wait::ifstopped (status);
       else
         error ("WIFSTOPPED: STATUS must be an integer");
     }
-#else
-  warning ("WIFSTOPPED always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1546,21 +1522,17 @@
 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WIFCONTINUED}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = 0;
 
-#if defined (WSTOPSIG)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WSTOPSIG (status);
+        retval = octave_wait::stopsig (status);
       else
         error ("WSTOPSIG: STATUS must be an integer");
     }
-#else
-  warning ("WSTOPSIG always returns false in this version of Octave");
-#endif
 
   return retval;
 }
@@ -1573,21 +1545,17 @@
 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG}\n\
 @end deftypefn")
 {
-  octave_value retval = 0.0;
+  octave_value retval = false;
 
-#if defined (WIFCONTINUED)
   if (args.length () == 1)
     {
       int status = args(0).int_value ();
 
       if (! error_state)
-        retval = WIFCONTINUED (status);
+        retval = octave_wait::ifcontinued (status);
       else
         error ("WIFCONTINUED: STATUS must be an integer");
     }
-#else
-  warning ("WIFCONTINUED always returns false in this version of Octave");
-#endif
 
   return retval;
 }
diff -r 61822c866ba1 -r a83b7b2f95ee libinterp/interpfcn/pager.cc
--- a/libinterp/interpfcn/pager.cc	Thu Aug 23 12:13:59 2012 -0400
+++ b/libinterp/interpfcn/pager.cc	Thu Aug 23 12:18:08 2012 -0400
@@ -108,7 +108,7 @@
 
   if (pid > 0)
     {
-      if (WIFEXITED (status) || WIFSIGNALLED (status))
+      if (octave_wait::ifexited (status) || octave_wait::ifsignaled (status))
         {
           // Avoid warning() since that will put us back in the pager,
           // which would be bad news.
diff -r 61822c866ba1 -r a83b7b2f95ee libinterp/interpfcn/toplev.cc
--- a/libinterp/interpfcn/toplev.cc	Thu Aug 23 12:13:59 2012 -0400
+++ b/libinterp/interpfcn/toplev.cc	Thu Aug 23 12:18:08 2012 -0400
@@ -808,8 +808,8 @@
 
       int cmd_status = cmd->close ();
 
-      if (WIFEXITED (cmd_status))
-        cmd_status = WEXITSTATUS (cmd_status);
+      if (octave_wait::ifexited (cmd_status))
+        cmd_status = octave_wait::exitstatus (cmd_status);
       else
         cmd_status = 127;
 
@@ -988,8 +988,8 @@
               // status of the command.  Otherwise, return 127 as a
               // failure code.
 
-              if (WIFEXITED (status))
-                status = WEXITSTATUS (status);
+              if (octave_wait::ifexited (status))
+                status = octave_wait::exitstatus (status);
 
               retval(0) = status;
             }
diff -r 61822c866ba1 -r a83b7b2f95ee liboctave/lo-cutils.c
--- a/liboctave/lo-cutils.c	Thu Aug 23 12:13:59 2012 -0400
+++ b/liboctave/lo-cutils.c	Thu Aug 23 12:18:08 2012 -0400
@@ -76,3 +76,115 @@
 {
   return WAITPID (pid, status, options);
 }
+
+OCTAVE_API int octave_wifexited (int status)
+{
+  int retval = 0;
+
+#if defined (WIFEXITED)
+  retval = WIFEXITED (status);
+#else
+  (*liboctave_warning_handler)
+    ("WIFEXITED always returns false in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wexitstatus (int status)
+{
+  int retval = 0;
+
+#if defined (WEXITSTATUS)
+  retval = WEXITSTATUS (status);
+#else
+  (*liboctave_warning_handler)
+    ("WEXITSTATUS always returns 0 in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wifsignaled (int status)
+{
+  int retval = 0;
+
+#if defined (WIFSIGNALED)
+  retval = WIFSIGNALED (status);
+#else
+  (*liboctave_warning_handler)
+    ("WIFSIGNALED always returns false in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wtermsig (int status)
+{
+  int retval = 0;
+
+#if defined (WTERMSIG)
+  retval = WTERMSIG (status);
+#else
+  (*liboctave_warning_handler)
+    ("WTERMSIG always returns 0 in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wcoredump (int status)
+{
+  int retval = 0;
+
+#if defined (WCOREDUMP)
+  retval = WCOREDUMP (status);
+#else
+  (*liboctave_warning_handler)
+    ("WCOREDUMP always returns false in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wifstopped (int status)
+{
+  int retval = 0;
+
+#if defined (WIFSTOPPED)
+  retval = WIFSTOPPED (status);
+#else
+  (*liboctave_warning_handler)
+    ("WIFSTOPPED always returns false in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wstopsig (int status)
+{
+  int retval = 0;
+
+#if defined (WSTOPSIG)
+  retval = WSTOPSIG (status);
+#else
+  (*liboctave_warning_handler)
+    ("WSTOPSIG always returns 0 in this version of Octave");
+#endif
+
+  return retval;
+}
+
+OCTAVE_API int octave_wifcontinued (int status)
+{
+  int retval = 0;
+
+#if defined (WIFCONTINUED)
+  retval = WIFCONTINUED (status);
+#else
+  (*liboctave_warning_handler)
+    ("WIFCONTINUED always returns false in this version of Octave");
+#endif
+
+  return retval;
+}
diff -r 61822c866ba1 -r a83b7b2f95ee liboctave/lo-cutils.h
--- a/liboctave/lo-cutils.h	Thu Aug 23 12:13:59 2012 -0400
+++ b/liboctave/lo-cutils.h	Thu Aug 23 12:18:08 2012 -0400
@@ -50,6 +50,15 @@
 OCTAVE_API pid_t
 octave_waitpid (pid_t pid, int *status, int options);
 
+OCTAVE_API int octave_wifexited (int status);
+OCTAVE_API int octave_wexitstatus (int status);
+OCTAVE_API int octave_wifsignaled (int status);
+OCTAVE_API int octave_wtermsig (int status);
+OCTAVE_API int octave_wcoredump (int status);
+OCTAVE_API int octave_wifstopped (int status);
+OCTAVE_API int octave_wstopsig (int status);
+OCTAVE_API int octave_wifcontinued (int status);
+
 #ifdef __cplusplus
 }
 #endif
diff -r 61822c866ba1 -r a83b7b2f95ee liboctave/lo-utils.h
--- a/liboctave/lo-utils.h	Thu Aug 23 12:13:59 2012 -0400
+++ b/liboctave/lo-utils.h	Thu Aug 23 12:18:08 2012 -0400
@@ -135,4 +135,52 @@
 extern OCTAVE_API void
 octave_write_float_complex (std::ostream& os, const FloatComplex& cval);
 
+// Maybe this is overkill, but it allos
+
+class
+octave_wait
+{
+public:
+
+  static bool ifexited (int status)
+  {
+    return octave_wifexited (status);
+  }
+
+  static int exitstatus (int status)
+  {
+    return octave_wexitstatus (status);
+  }
+
+  static bool ifsignaled (int status)
+  {
+    return octave_wifsignaled (status);
+  }
+
+  static int termsig (int status)
+  {
+    return octave_wtermsig (status);
+  }
+
+  static bool coredump (int status)
+  {
+    return octave_wcoredump (status);
+  }
+
+  static bool ifstopped (int status)
+  {
+    return octave_wifstopped (status);
+  }
+
+  static int stopsig (int status)
+  {
+    return octave_wstopsig (status);
+  }
+
+  static bool ifcontinued (int status)
+  {
+    return octave_wifcontinued (status);
+  }
+};
+
 #endif