LCS2016_026c < P1076

P1076 Web>VHDL2017>LCS2016_026c (2017-07-24, RobGaddi) (raw view)EditAttach
---+ Language Change Specification for Long Integers Proposal

---++ 

| *LCS Number:*  | LCS-2016-026c  |
| *Version:*  | 2  |
| *Date:*  | 03-Mar-2017  |
| *Status:*  | Approved  |
| *Author:*  | [[Main.RobGaddi][Rob Gaddi]]  |
| *More:*  | [[LCS2016_026c_History][History]] |
| *Summary:*  | Allow for use of 64 bit integers.  |
%TOC%

---+++ Details_of_Language_Change
---++++ LRM 5.2.3.1 Integer Types -- General

Changes are shown in %RED%red font%ENDCOLOR%.

---+++++ (026.1) Page 39 second paragraph

However, an implementation shall allow the declaration of any integer type whose range is wholly contained within the bounds %RED%<del> -2147483647 and +2147483647</del>-(2**63) and (2**63)-1%ENDCOLOR% inclusive.
---++++ LRM 5.2.3.2 Predefined Integer Types
---+++++ (026.2) Page 39 middle of page

The only predefined integer type is the type INTEGER. The range of INTEGER is implementation dependent, but it is guaranteed to include the range %RED%<del>-2147483647 and +2147483647</del> -(2**63) and (2**63)-1%ENDCOLOR%. It is defined with an ascending range. %RED%The declaration of type INTEGER appears in package STANDARD in Clause 16.%ENDCOLOR%

---++++ LRM 5.2.4.1 Physical Types -- General
---+++++ (026.3) Page 40 below middle of page

However, an implementation shall allow the declaration of any physical type whose range is wholly contained within the bounds %RED%<del> -2147483647 and +2147483647</del>-(2**63) and (2**63)-1%ENDCOLOR% inclusive.
---++++ LRM 5.2.4.2 Predefined Physical Types
---+++++ (026.4) Page 41 below middle of page

The range of TIME is implementation dependent, but it is guaranteed to include the range %RED%<del>-2147483647 and +2147483647</del> -(2**63) and (2**63)-1%ENDCOLOR%.

---++++ LRM 5.2.5.2 Predefined floating-point types

(026.5)

The only predefined floating-point type is the type REAL. The range of REAL is host-dependent, but it is guaranteed to be the largest allowed by the
chosen representation. It is defined with an ascending range. %RED%The declaration of type REAL appears in package STANDARD in Clause 16.%ENDCOLOR%

---++++ LRM Annex D - (Potentially nonportable constructs)
---+++++ (026.6) Bottom of page 501

  * Declarations of integer %RED%types%ENDCOLOR% or physical types that have a secondary unit whose position number is outside of the range %RED%<del>–(2**31–1) to 2**31–1</del>  –(2**63) to 2**63–1%ENDCOLOR%

---++++ 

---++ Comments

%COMMENT%
Topic revision: r16 - 2017-07-24 - 04:15:16 - RobGaddi
P1076