interfac.ads: Change declarations of IEEE float types so that we no longer need a separate...
2005-11-14 Robert Dewar <dewar@adacore.com> * interfac.ads: Change declarations of IEEE float types so that we no longer need a separate version of this package for VMS. From-SVN: r106987
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@ -35,11 +35,6 @@
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-- --
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------------------------------------------------------------------------------
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-- Assumes integer sizes of 8, 16, 32 and 64 are available, and that the
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-- floating-point formats are IEEE compatible.
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-- Note: There is a specialized version of this package for OpenVMS
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package Interfaces is
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pragma Pure;
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@ -153,17 +148,26 @@ package Interfaces is
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pragma Import (Intrinsic, Rotate_Left);
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pragma Import (Intrinsic, Rotate_Right);
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-- Floating point types. We assume that we are on an IEEE machine, and
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-- that the types Short_Float and Long_Float in Standard refer to the
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-- 32-bit short and 64-bit long IEEE forms. Furthermore, if there is
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-- an extended float, we assume that it is available as Long_Long_Float.
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-- IEEE Floating point types. Note that the form of these definitions
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-- ensures that the work on VMS, even if the standard library is compiled
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-- using a Float_Representation pragma for Vax_Float.
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pragma Warnings (Off);
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-- Turn off warnings for targets not providing IEEE floating-point types
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type IEEE_Float_32 is digits 6;
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pragma Float_Representation (IEEE_Float, IEEE_Float_32);
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type IEEE_Float_64 is digits 15;
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pragma Float_Representation (IEEE_Float, IEEE_Float_64);
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-- If there is an IEEE extended float available on the machine, we assume
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-- that it is available as Long_Long_Float.
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-- Note: it is harmless, and explicitly permitted, to include additional
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-- types in interfaces, so it is not wrong to have IEEE_Extended_Float
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-- defined even if the extended format is not available.
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type IEEE_Float_32 is new Short_Float;
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type IEEE_Float_64 is new Long_Float;
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type IEEE_Extended_Float is new Long_Long_Float;
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end Interfaces;
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