cstand.adb: Fix comments.

2011-08-01  Geert Bosch  <bosch@adacore.com>

	* cstand.adb: Fix comments.
	* sem_prag.adb (Analyze_Pragma): Use List_Length instead of explicit
	count of arguments.

From-SVN: r177024

gcc/ada/ChangeLog

+2011-08-01  Geert Bosch  <bosch@adacore.com>
+
+	* cstand.adb: Fix comments.
+	* sem_prag.adb (Analyze_Pragma): Use List_Length instead of explicit
+	count of arguments.
+
 2011-08-01  Robert Dewar  <dewar@adacore.com>
 
 	* exp_ch4.adb, sem_cat.adb: Minor reformatting.

gcc/ada/cstand.adb

@@ -817,7 +817,7 @@ package body CStand is
       Set_Entity (E_Id, Standard_Positive);
       Set_Etype (E_Id, Standard_Positive);
 
-      --  Setup entity for Naturalend Create_Standard;
+      --  Setup entity for Natural
 
       Set_Ekind          (Standard_Natural, E_Signed_Integer_Subtype);
       Set_Etype          (Standard_Natural, Base_Type (Standard_Integer));
@@ -1833,14 +1833,15 @@ package body CStand is
       P ("   pragma Pack (Wide_Wide_String);");
       Write_Eol;
 
-      --  Here it's OK to use the Duration type of the host compiler since
-      --  the implementation of Duration in GNAT is target independent.
+      --  We only have one representation each for 32-bit and 64-bit sizes,
+      --  so select the right one based on Duration_32_Bits_On_Target.
 
       if Duration_32_Bits_On_Target then
          P ("   type Duration is delta 0.020");
          P ("     range -((2 ** 31 - 1) * 0.020) ..");
          P ("           +((2 ** 31 - 1) * 0.020);");
          P ("   for Duration'Small use 0.020;");
+
       else
          P ("   type Duration is delta 0.000000001");
          P ("     range -((2 ** 63 - 1) * 0.000000001) ..");

gcc/ada/sem_prag.adb

@@ -5678,12 +5678,14 @@ package body Sem_Prag is
 
       --  Preset arguments
 
+      Arg_Count := 0;
       Arg1 := Empty;
       Arg2 := Empty;
       Arg3 := Empty;
       Arg4 := Empty;
 
       if Present (Pragma_Argument_Associations (N)) then
+         Arg_Count := List_Length (Pragma_Argument_Associations (N));
          Arg1 := First (Pragma_Argument_Associations (N));
 
          if Present (Arg1) then
@@ -5699,19 +5701,6 @@ package body Sem_Prag is
          end if;
       end if;
 
-      --  Count number of arguments
-
-      declare
-         Arg_Node : Node_Id;
-      begin
-         Arg_Count := 0;
-         Arg_Node := Arg1;
-         while Present (Arg_Node) loop
-            Arg_Count := Arg_Count + 1;
-            Next (Arg_Node);
-         end loop;
-      end;
-
       --  An enumeration type defines the pragmas that are supported by the
       --  implementation. Get_Pragma_Id (in package Prag) transforms a name
       --  into the corresponding enumeration value for the following case.