setlocale not working as expected

[John Chapman]

On Friday, 24 February 2012 at 18:47:34 UTC, Jonathan M Davis 
wrote:
> On Friday, February 24, 2012 08:10:31 Frank De prins wrote:
>> Hello,
>> 
>> When I use setlocale with LC_ALL it does not seem to work.
>> I use nlb_belgium and, when I print (writeln in console) a
>> floating point number, I expect the decimal separator to be a
>> comma. But it remains a dot.
>> When I use 0 instead of LC_ALL, it does work.
>> So I inspected the values defined for those locale cateory
>> constants and they seem to be completely different from what I
>> find in the Visual C++ headers. Is this possible? I mean, are
>> they not expected to be the same, or is this vendor specific?
>> 
>> PS: This is how they are defined in VC:
>> 
>> #define LC_ALL 0
>> #define LC_COLLATE 1
>> #define LC_CTYPE 2
>> #define LC_MONETARY 3
>> #define LC_NUMERIC 4
>> #define LC_TIME 5
>> 
>> Also, in VC++, the return value of setlocale is defined as 
>> char*
>> whereas, in D, it is int. This makes it impossible to inspect
>> the current locale.
>> 
>> Best regards and thanks for a wondderfull language,
>
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> - Jonathan M Davis

Already reported as issue 5589 some time ago.
http://d.puremagic.com/issues/show_bug.cgi?id=5589