with Unchecked_Conversion;
with System.Val_Util; use System.Val_Util;
package body System.Val_Enum is
function Value_Enumeration_8
(Names : String;
Indexes : System.Address;
Num : Natural;
Str : String)
return Natural
is
F : Natural;
L : Natural;
S : String (Str'Range) := Str;
type Natural_8 is range 0 .. 2 ** 7 - 1;
type Index_Table is array (Natural) of Natural_8;
type Index_Table_Ptr is access Index_Table;
function To_Index_Table_Ptr is
new Unchecked_Conversion (System.Address, Index_Table_Ptr);
IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
begin
Normalize_String (S, F, L);
for J in 0 .. Num loop
if Names
(Natural (IndexesT (J)) ..
Natural (IndexesT (J + 1)) - 1) = S (F .. L)
then
return J;
end if;
end loop;
raise Constraint_Error;
end Value_Enumeration_8;
function Value_Enumeration_16
(Names : String;
Indexes : System.Address;
Num : Natural;
Str : String)
return Natural
is
F : Natural;
L : Natural;
S : String (Str'Range) := Str;
type Natural_16 is range 0 .. 2 ** 15 - 1;
type Index_Table is array (Natural) of Natural_16;
type Index_Table_Ptr is access Index_Table;
function To_Index_Table_Ptr is
new Unchecked_Conversion (System.Address, Index_Table_Ptr);
IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
begin
Normalize_String (S, F, L);
for J in 0 .. Num loop
if Names
(Natural (IndexesT (J)) ..
Natural (IndexesT (J + 1)) - 1) = S (F .. L)
then
return J;
end if;
end loop;
raise Constraint_Error;
end Value_Enumeration_16;
function Value_Enumeration_32
(Names : String;
Indexes : System.Address;
Num : Natural;
Str : String)
return Natural
is
F : Natural;
L : Natural;
S : String (Str'Range) := Str;
type Natural_32 is range 0 .. 2 ** 31 - 1;
type Index_Table is array (Natural) of Natural_32;
type Index_Table_Ptr is access Index_Table;
function To_Index_Table_Ptr is
new Unchecked_Conversion (System.Address, Index_Table_Ptr);
IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
begin
Normalize_String (S, F, L);
for J in 0 .. Num loop
if Names
(Natural (IndexesT (J)) ..
Natural (IndexesT (J + 1)) - 1) = S (F .. L)
then
return J;
end if;
end loop;
raise Constraint_Error;
end Value_Enumeration_32;
end System.Val_Enum;