Re: [boost] BOOST_LOCAL_FUNCTION

From: Alexander Nasonov (alnsn_at_[hidden])
Date: 2007-11-27 11:14:10

Joseph Gauterin <joseph.gauterin <at> googlemail.com> writes:

> 
> What's the advantage to using
> int BOOST_LOCAL_FUNCTION(char c)
> {
>   std::cout << c << '\n';
>   return 1;
> } BOOST_LOCAL_FUNCTION_DECL(a)
> 
> over:
> 
> struct
> {
>   int operator()(char c)const
>   {
>     std::cout << c << '\n';
>     return 1;
>   }
> } a;

Local struct can't be passed to templates:

boost::function<int(char)> f = a;

error: conversion from `main()::<anonymous struct>' to non-scalar type 
`boost::function<int ()(char), std::allocator<void> >' requested
--
Alexander