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From: "ilya.konstantinov at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/61413] New: __ARM_SIZEOF_WCHAR_T is constant 32 -- should be 4 or 2
Date: Wed, 04 Jun 2014 17:15:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61413

            Bug ID: 61413
           Summary: __ARM_SIZEOF_WCHAR_T is constant 32 -- should be 4 or
                    2
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ilya.konstantinov at gmail dot com

ARM EABI mandates __ARM_SIZEOF_WCHAR_T that reflects the wchar size:
"wchar_t may be 2 or 4 bytes. The predefined macro __ARM_SIZEOF_WCHAR_T should
be defined as the same number." [1]

However, on gcc we have the following built-in defines:
#define __ARM_SIZEOF_WCHAR_T 32 

while it should be:
#define __ARM_SIZEOF_WCHAR_T 4

or with -fshort-wchar:
#define __ARM_SIZEOF_WCHAR_T 2

[1]
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053b/IHI0053B_arm_c_language_extensions_2013.pdf