Re: [Boost-users] doubt on boost::bind and boost::function

Subject: Re: [Boost-users] doubt on boost::bind and boost::function
From: Conoscenza Silente (abruzzoforteegentile_at_[hidden])
Date: 2010-02-19 11:18:18

Auch...It is true.
I switched to  boost::arg<1>().
Everything is fine now with both solutions
Thank you very much
CS

On Fri, Feb 19, 2010 at 4:58 PM, Sergey Mitsyn <svm_at_[hidden]> wrote:

> Hello,
>
> Probably you've meant boost::arg<n>() ? That's because boost::arg<n> is a
> type, and _1 is a variable.
>
>
>
> On 19.02.2010 18:09, Conoscenza Silente wrote:
>
>> If I use _1 it seems that there is a conflict with the placehodler of
>> boost::lambda
>> so I switched to using boost::arg<1> to avoid the conflict but I still
>> have an error saying.
>>
>> TestBoost_Feb18.h:34: error: expected primary-expression before ‘)’ token
>>
>> If I want to use the placeholders of boos::bind explicitly ( since I am
>> using
>> explicitly boost::bind ) is boost::arg<n> good?
>>
>> Below is my code
>> #include<boost/bind/placeholders>
>> boost::function< bool(const std::string& ) > fooPtr (
>>             boost::bind( &CA::IsMemberFunction, this, boost::arg<1>  ) );
>>
>>
>> On Fri, Feb 19, 2010 at 3:31 PM, Rutger ter Borg <rutger_at_[hidden]
>> <mailto:rutger_at_[hidden]>> wrote:
>>
>>    Conoscenza Silente wrote:
>>
>>     > Do you know what I am doing wrong?
>>     > Is the signature fine?
>>     > Thanks
>>
>>    try boost::bind( &CA::IsMemberFunction, this, _1 )
>>
>>    Cheers,
>>
>>    Rutger
>>
>>
>>
>>
>>
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>>
>>
>>
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>
>
> ----------------
> Sergey Mitsyn.
>
>
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