65 lines
2.8 KiB
Ada
65 lines
2.8 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- I N T E R F A C E S . F O R T R A N --
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-- --
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-- S p e c --
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-- --
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-- This specification is adapted from the Ada Reference Manual for use with --
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-- GNAT. In accordance with the copyright of that document, you can freely --
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-- copy and modify this specification, provided that if you redistribute a --
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-- modified version, any changes that you have made are clearly indicated. --
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-- --
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------------------------------------------------------------------------------
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with Ada.Numerics.Generic_Complex_Types;
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pragma Elaborate_All (Ada.Numerics.Generic_Complex_Types);
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package Interfaces.Fortran is
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pragma Pure;
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type Fortran_Integer is new Integer;
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type Real is new Float;
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type Double_Precision is new Long_Float;
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type Logical is new Boolean;
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for Logical'Size use Integer'Size;
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pragma Convention (Fortran, Logical);
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-- As required by Fortran standard, stand alone logical allocates same
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-- space as integer (but what about the array case???). The convention
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-- is important, since in Fortran, Booleans have zero/non-zero semantics
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-- for False/True, and the pragma Convention (Fortran) activates the
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-- special handling required in this case.
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package Single_Precision_Complex_Types is
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new Ada.Numerics.Generic_Complex_Types (Real);
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type Complex is new Single_Precision_Complex_Types.Complex;
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subtype Imaginary is Single_Precision_Complex_Types.Imaginary;
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i : Imaginary renames Single_Precision_Complex_Types.i;
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j : Imaginary renames Single_Precision_Complex_Types.j;
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type Character_Set is new Character;
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type Fortran_Character is array (Positive range <>) of Character_Set;
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function To_Fortran (Item : Character) return Character_Set;
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function To_Ada (Item : Character_Set) return Character;
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function To_Fortran (Item : String) return Fortran_Character;
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function To_Ada (Item : Fortran_Character) return String;
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procedure To_Fortran
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(Item : String;
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Target : out Fortran_Character;
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Last : out Natural);
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procedure To_Ada
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(Item : Fortran_Character;
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Target : out String;
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Last : out Natural);
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end Interfaces.Fortran;
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