1 files changed, 18 insertions, 5 deletions

diff --git a/gcc/ada/4znumaux.ads b/gcc/ada/4znumaux.ads
index 9638fb02fec..3a995a12bd1 100644
--- a/gcc/ada/4znumaux.ads
+++ b/gcc/ada/4znumaux.ads
@@ -7,7 +7,7 @@
 --                                 S p e c                                  --
 --                       (C Library Version, VxWorks)                       --
 --                                                                          --
---          Copyright (C) 1992-2002 Free Software Foundation, Inc.          --
+--          Copyright (C) 1992-2003 Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -50,48 +50,61 @@ pragma Pure (Aux);
    --  no libm.a library for VxWorks.
 
    type Double is digits 15;
-   pragma Float_Representation (IEEE_Float, Double);
-   --  Type Double is the type used to call the C routines. Note that this
-   --  is IEEE format even when running on VMS with Vax_Float representation
-   --  since we use the IEEE version of the C library with VMS.
+   --  Type Double is the type used to call the C routines
+
+   --  We import these functions directly from C. Note that we label them
+   --  all as pure functions, because indeed all of them are in fact pure!
 
    function Sin (X : Double) return Double;
    pragma Import (C, Sin, "sin");
+   pragma Pure_Function (Sin);
 
    function Cos (X : Double) return Double;
    pragma Import (C, Cos, "cos");
+   pragma Pure_Function (Cos);
 
    function Tan (X : Double) return Double;
    pragma Import (C, Tan, "tan");
+   pragma Pure_Function (Tan);
 
    function Exp (X : Double) return Double;
    pragma Import (C, Exp, "exp");
+   pragma Pure_Function (Exp);
 
    function Sqrt (X : Double) return Double;
    pragma Import (C, Sqrt, "sqrt");
+   pragma Pure_Function (Sqrt);
 
    function Log (X : Double) return Double;
    pragma Import (C, Log, "log");
+   pragma Pure_Function (Log);
 
    function Acos (X : Double) return Double;
    pragma Import (C, Acos, "acos");
+   pragma Pure_Function (Acos);
 
    function Asin (X : Double) return Double;
    pragma Import (C, Asin, "asin");
+   pragma Pure_Function (Asin);
 
    function Atan (X : Double) return Double;
    pragma Import (C, Atan, "atan");
+   pragma Pure_Function (Atan);
 
    function Sinh (X : Double) return Double;
    pragma Import (C, Sinh, "sinh");
+   pragma Pure_Function (Sinh);
 
    function Cosh (X : Double) return Double;
    pragma Import (C, Cosh, "cosh");
+   pragma Pure_Function (Cosh);
 
    function Tanh (X : Double) return Double;
    pragma Import (C, Tanh, "tanh");
+   pragma Pure_Function (Tanh);
 
    function Pow (X, Y : Double) return Double;
    pragma Import (C, Pow, "pow");
+   pragma Pure_Function (Pow);
 
 end Ada.Numerics.Aux;