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

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::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 mailto:rutger@terborg.net> 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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