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Status Delivered
Workspace C/C++ and Fortran Compilers
Categories C/C++
Created by Guest
Created on Oct 26, 2016

RELATED IDEAS

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.

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