Re: Newbie lambda question

From: Markus Werle (yg-boost-users_at_[hidden])
Date: 2003-06-24 04:47:30

Ian wrote:

> Boosters:
> 
> Try as I might, I cannot figure a way of converting the following code
> snippet to use std::for_each with boost::lamdba. Any ideas?
> 
> 
> unsigned int table[1000];
> for ( unsigned int* it = table_;  it != table_ + (sizeof(table_) /
> sizeof(unsigned int)); ++i ) {
>     *it = ((int)it % 3);
> }

> The pointer to int cast is the killer, the docs mention the ret<> template
> briefly, but it does not seem to help...

Use the cast objects:
ll_static_cast<int>(_1)

not tested, but it might work:

namespace l = boost::lambda; // use this if You wanna get happy!

std::for_each(begin, end,
              l::_1 = l::ll_static_cast<int>(_1) % 3);

        

Markus

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