diff options
Diffstat (limited to 'gcc/ada/interfac.ads')
| -rw-r--r-- | gcc/ada/interfac.ads | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/gcc/ada/interfac.ads b/gcc/ada/interfac.ads index 15cfd9c87bb..38e5cdab736 100644 --- a/gcc/ada/interfac.ads +++ b/gcc/ada/interfac.ads @@ -35,11 +35,6 @@ -- -- ------------------------------------------------------------------------------ --- Assumes integer sizes of 8, 16, 32 and 64 are available, and that the --- floating-point formats are IEEE compatible. - --- Note: There is a specialized version of this package for OpenVMS - package Interfaces is pragma Pure; @@ -153,17 +148,26 @@ package Interfaces is pragma Import (Intrinsic, Rotate_Left); pragma Import (Intrinsic, Rotate_Right); - -- Floating point types. We assume that we are on an IEEE machine, and - -- that the types Short_Float and Long_Float in Standard refer to the - -- 32-bit short and 64-bit long IEEE forms. Furthermore, if there is - -- an extended float, we assume that it is available as Long_Long_Float. + -- IEEE Floating point types. Note that the form of these definitions + -- ensures that the work on VMS, even if the standard library is compiled + -- using a Float_Representation pragma for Vax_Float. + + pragma Warnings (Off); + -- Turn off warnings for targets not providing IEEE floating-point types + + type IEEE_Float_32 is digits 6; + pragma Float_Representation (IEEE_Float, IEEE_Float_32); + + type IEEE_Float_64 is digits 15; + pragma Float_Representation (IEEE_Float, IEEE_Float_64); + + -- If there is an IEEE extended float available on the machine, we assume + -- that it is available as Long_Long_Float. -- Note: it is harmless, and explicitly permitted, to include additional -- types in interfaces, so it is not wrong to have IEEE_Extended_Float -- defined even if the extended format is not available. - type IEEE_Float_32 is new Short_Float; - type IEEE_Float_64 is new Long_Float; type IEEE_Extended_Float is new Long_Long_Float; end Interfaces; |