Re: [boost] [1.48.0] Beta 1 release candidates available

Subject: Re: [boost] [1.48.0] Beta 1 release candidates available
From: Vicente Botet (vicente.botet_at_[hidden])
Date: 2011-10-27 16:18:52

Artyom Beilis wrote:
> 
>> 
> 
>> There are some build errors on MAC-OS clang in libraries Locale and Math.
>> 
>> clang-darwin.compile.c++ 
>> bin.v2/libs/locale/build/clang-darwin-3.0x/release/threading-multi/posix/codecvt.o
>> libs/locale/src/posix/codecvt.cpp:137:30: error: non-constant-expression
>> cannot 
>> be narrowed from type 'unsigned char' to 'char' in initializer 
>> list
>> Â  Â  Â  Â  Â  Â  char inseq[3] = {seq0 , begin[1], 0};
>> Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â   ^~~~
>> libs/locale/src/posix/codecvt.cpp:137:30: note: override this message by 
>> inserting an explicit cast
>> Â  Â  Â  Â  Â  Â  char inseq[3] = {seq0 , begin[1], 0};
>> Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â   ^~~~
>> Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â  Â   stat)c_cast<char>(
>> 1 error generated.
>> 
> 
> I don't see this problem with clang-2.8.
> 
> Why clang-3 does not allow code like (I don't have clang-3 to check)?
> 
> Â  int main()
> Â  {
> Â Â  Â Â  unsigned char uc = 10;
> Â  Â  Â  char c[2] = { uc , 1 };
> Â  }
> 
> Is this really error, why the compiler does not cast?
> 
> 

I don't know. The same error appears with clang-2.9 c++03 or c++11 mode.

> 
>> ...
>> The same error appears several times then
>> 
> 
> Is this the same error all over?
> 

The locale error occurred just once. It was the Math error that appeared
several times.

Best,
Vicente

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