Subject: Re: [boost] [algorithm] to_lower_copy / to_upper_copy with no output param assumes sequence to be same as input
From: Olaf van der Spek (ml_at_[hidden])
Date: 2011-06-24 04:08:38
On Thu, Jun 23, 2011 at 9:47 PM, Sebastian Karlsson <sairony_at_[hidden]> wrote:
> Seems to be easier than I anticipated, just add output type as a param
> and slap it in as the return type for transform_range_copy, like so:
>
> template<typename SequenceT, typename OutputT >
> inline SequenceT to_lower_copy(
Shouldn't the return type be OutputT?
> const SequenceT& Input,
> const std::locale& Loc=std::locale())
> {
> return ::boost::algorithm::detail::transform_range_copy< OutputT >(
> Input,
> ::boost::algorithm::detail::to_lowerF<
> typename range_value<SequenceT>::type >(Loc));
> }
>
> Seems to work with the little testing I've been able to do so far.
I'm not sure if C++ allows this, but SequenceT can be deduced while
OutputT can not.
Shouldn't OutputT therefore come first in the template list so that
SequenceT can be deduced?
Olaf