Skip to Main Content
IBM Z Software


This portal is to open public enhancement requests against IBM Z Software products. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,

Post your ideas
  1. Post an idea.

  2. Get feedback from the IBM team and other customers to refine your idea.

  3. Follow the idea through the IBM Ideas process.


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

Status Delivered
Categories C/C++
Created by Guest
Created on Oct 26, 2016

short int as a bitfield in XL C and XL C++

This request is for short int types as bitfields in a struct. There doesn't appear to be a specific standard requirement to include the short datatype as a potential bitfield value, however C and C++ differ in how they treat the type. C outputs an (E) error, and continues compilation:

"test.c", line 4.5: 1506-159 (E) Bit field type specified for a is not valid. Type unsigned assumed.

, while C++ silently accepts them. In both cases, shorts appear to be promoted to an unsigned int type. Many other compilers accept the short int as a bitfield datatype. Can short int type be considered for support?

Idea priority Medium
  • Guest
    Reply
    |
    Apr 27, 2020

    The provided test case compiles with xlclang of XL C/C++ for AIX, V16.1. As a result, marking this RFE as "Delivered".

  • Guest
    Reply
    |
    Jan 20, 2017

    Discussing this RFE with the submitter directly.

  • Guest
    Reply
    |
    Nov 30, 2016

    This RFE is still being investigated further.