+++ /dev/null
------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- I N T E R F A C E S . C --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- This specification is adapted from the Ada Reference Manual for use with --
--- GNAT. In accordance with the copyright of that document, you can freely --
--- copy and modify this specification, provided that if you redistribute a --
--- modified version, any changes that you have made are clearly indicated. --
--- --
-------------------------------------------------------------------------------
-
-with System.Parameters;
-
-package Interfaces.C is
-pragma Pure (C);
-
- -- Declaration's based on C's <limits.h>
-
- CHAR_BIT : constant := 8;
- SCHAR_MIN : constant := -128;
- SCHAR_MAX : constant := 127;
- UCHAR_MAX : constant := 255;
-
- -- Signed and Unsigned Integers. Note that in GNAT, we have ensured that
- -- the standard predefined Ada types correspond to the standard C types
-
- type int is new Integer;
- type short is new Short_Integer;
- type long is range -(2 ** (System.Parameters.long_bits - 1))
- .. +(2 ** (System.Parameters.long_bits - 1)) - 1;
-
- type signed_char is range SCHAR_MIN .. SCHAR_MAX;
- for signed_char'Size use CHAR_BIT;
-
- type unsigned is mod 2 ** int'Size;
- type unsigned_short is mod 2 ** short'Size;
- type unsigned_long is mod 2 ** long'Size;
-
- type unsigned_char is mod (UCHAR_MAX + 1);
- for unsigned_char'Size use CHAR_BIT;
-
- subtype plain_char is unsigned_char; -- ??? should be parametrized
-
- type ptrdiff_t is
- range -(2 ** (Standard'Address_Size - 1)) ..
- +(2 ** (Standard'Address_Size - 1) - 1);
-
- type size_t is mod 2 ** Standard'Address_Size;
-
- -- Floating-Point
-
- type C_float is new Float;
- type double is new Standard.Long_Float;
- type long_double is new Standard.Long_Long_Float;
-
- ----------------------------
- -- Characters and Strings --
- ----------------------------
-
- type char is new Character;
-
- nul : constant char := char'First;
-
- function To_C (Item : Character) return char;
- function To_Ada (Item : char) return Character;
-
- type char_array is array (size_t range <>) of aliased char;
- for char_array'Component_Size use CHAR_BIT;
-
- function Is_Nul_Terminated (Item : in char_array) return Boolean;
-
- function To_C
- (Item : in String;
- Append_Nul : in Boolean := True)
- return char_array;
-
- function To_Ada
- (Item : in char_array;
- Trim_Nul : in Boolean := True)
- return String;
-
- procedure To_C
- (Item : in String;
- Target : out char_array;
- Count : out size_t;
- Append_Nul : in Boolean := True);
-
- procedure To_Ada
- (Item : in char_array;
- Target : out String;
- Count : out Natural;
- Trim_Nul : in Boolean := True);
-
- ------------------------------------
- -- Wide Character and Wide String --
- ------------------------------------
-
- type wchar_t is new Wide_Character;
- for wchar_t'Size use Standard'Wchar_T_Size;
-
- wide_nul : constant wchar_t := wchar_t'First;
-
- function To_C (Item : in Wide_Character) return wchar_t;
- function To_Ada (Item : in wchar_t) return Wide_Character;
-
- type wchar_array is array (size_t range <>) of aliased wchar_t;
-
- function Is_Nul_Terminated (Item : in wchar_array) return Boolean;
-
- function To_C
- (Item : in Wide_String;
- Append_Nul : in Boolean := True)
- return wchar_array;
-
- function To_Ada
- (Item : in wchar_array;
- Trim_Nul : in Boolean := True)
- return Wide_String;
-
- procedure To_C
- (Item : in Wide_String;
- Target : out wchar_array;
- Count : out size_t;
- Append_Nul : in Boolean := True);
-
- procedure To_Ada
- (Item : in wchar_array;
- Target : out Wide_String;
- Count : out Natural;
- Trim_Nul : in Boolean := True);
-
- Terminator_Error : exception;
-
-end Interfaces.C;
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