[Mingw-notify] [ mingw-Bugs-1330211 ] Default lconv table wrong with --unsigned-char

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Bugs item #1330211, was opened at 2005-10-19 10:53
Message generated for change (Settings changed) made by dannysmith
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>Category: mingw runtime
Group: None
Status: Open
Resolution: None
Priority: 2
Submitted By: Danny Smith (dannysmith)
>Assigned to: Nobody/Anonymous (nobody)
Summary: Default lconv table wrong with --unsigned-char 

Initial Comment:
This testcase:

#include <locale.h>
#include <limits.h>
#include <assert.h>

int main( void )
{
 struct lconv* p_lconv0 = localeconv();
  /* ANSI says this is the default initialization
     for this and several other fields,  */
  assert (p_lconv0->frac_digits == CHAR_MAX);
  return 0;
}

suceeds if compiled with signed char (the default)
but fail if -funsigned-char is addred to compiler flags.

When compled with MS cl  using /J switch (equivalent 
to -funsigned-chars)   the test succeeds

This is a startup code problem.  Somehow, the 
preprocessor define __UNSIGNED_CHAR__ needs to 
trigger a call to a constructor that initializes the default 
lconv  fields to UCHAR_MAX, 

Danny

  

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