Hurd, C++: Avoid "const char *" to "char *" casts

... by a bit of code refactoring:

	gdb/
	* gnu-nat.c (set_task_pause_cmd, set_signals_cmd)
	(set_exceptions_cmd): Add variants taking an "int arg" instead of
	a "char *".  Make the "char *" variants use the former.
	(set_noninvasive_cmd): Also use the "int arg" variants.

2 files changed, 33 insertions, 11 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8b43cd8..b40ac6f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2016-12-08  Thomas Schwinge  <thomas@codesourcery.com>
 
+	* gnu-nat.c (set_task_pause_cmd, set_signals_cmd)
+	(set_exceptions_cmd): Add variants taking an "int arg" instead of
+	a "char *".  Make the "char *" variants use the former.
+	(set_noninvasive_cmd): Also use the "int arg" variants.
+
 	* gnu-nat.c (gnu_create_inferior): Move nested "trace_me"
 	function...
 	(gnu_ptrace_me): ... here.
diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c
index 34fd6f1..29bd9b9 100644
--- a/gdb/gnu-nat.c
+++ b/gdb/gnu-nat.c
@@ -2792,12 +2792,12 @@ active_inf (void)
 
 
 static void
-set_task_pause_cmd (char *args, int from_tty)
+set_task_pause_cmd (int arg, int from_tty)
 {
   struct inf *inf = cur_inf ();
   int old_sc = inf->pause_sc;
 
-  inf->pause_sc = parse_bool_arg (args, "set task pause");
+  inf->pause_sc = arg;
 
   if (old_sc == 0 && inf->pause_sc != 0)
     /* If the task is currently unsuspended, immediately suspend it,
@@ -2806,6 +2806,12 @@ set_task_pause_cmd (char *args, int from_tty)
 }
 
 static void
+set_task_pause_cmd (char *args, int from_tty)
+{
+  set_task_pause_cmd (parse_bool_arg (args, "set task pause"), from_tty);
+}
+
+static void
 show_task_pause_cmd (char *args, int from_tty)
 {
   struct inf *inf = cur_inf ();
@@ -2991,11 +2997,11 @@ show_sig_thread_cmd (char *args, int from_tty)
 
 
 static void
-set_signals_cmd (char *args, int from_tty)
+set_signals_cmd (int arg, int from_tty)
 {
   struct inf *inf = cur_inf ();
 
-  inf->want_signals = parse_bool_arg (args, "set signals");
+  inf->want_signals = arg;
 
   if (inf->task && inf->want_signals != inf->traced)
     /* Make this take effect immediately in a running process.  */
@@ -3003,6 +3009,12 @@ set_signals_cmd (char *args, int from_tty)
 }
 
 static void
+set_signals_cmd (char *args, int from_tty)
+{
+  set_signals_cmd(parse_bool_arg (args, "set signals"), from_tty);
+}
+
+static void
 show_signals_cmd (char *args, int from_tty)
 {
   struct inf *inf = cur_inf ();
@@ -3015,15 +3027,20 @@ show_signals_cmd (char *args, int from_tty)
 }
 
 static void
-set_exceptions_cmd (char *args, int from_tty)
+set_exceptions_cmd (int arg, int from_tty)
 {
   struct inf *inf = cur_inf ();
-  int val = parse_bool_arg (args, "set exceptions");
 
   /* Make this take effect immediately in a running process.  */
   /* XXX */ ;
 
-  inf->want_exceptions = val;
+  inf->want_exceptions = arg;
+}
+
+static void
+set_exceptions_cmd (char *args, int from_tty)
+{
+  set_exceptions_cmd (parse_bool_arg (args, "set exceptions"), from_tty);
 }
 
 static void
@@ -3078,11 +3095,11 @@ static void
 set_noninvasive_cmd (char *args, int from_tty)
 {
   /* Invert the sense of the arg for each component.  */
-  char *inv_args = parse_bool_arg (args, "set noninvasive") ? "off" : "on";
+  int inv_arg = parse_bool_arg (args, "set noninvasive") ? 0 : 1;
 
-  set_task_pause_cmd (inv_args, from_tty);
-  set_signals_cmd (inv_args, from_tty);
-  set_exceptions_cmd (inv_args, from_tty);
+  set_task_pause_cmd (inv_arg, from_tty);
+  set_signals_cmd (inv_arg, from_tty);
+  set_exceptions_cmd (inv_arg, from_tty);
 }