Re: [Boost-users] [lambda] Should the code compile?

Subject: Re: [Boost-users] [lambda] Should the code compile?
From: Max (loadcom_at_[hidden])
Date: 2008-12-31 00:39:00

Hello Watanabe,

It seems to be a problem of my mail editor.
I have used the correct static_cast grammar but some characters were
silently eaten. :-(

Sorry for misleading.

At last, I've found the problem and the working code is as follows:

#define DECLARE_PTR_AUTO_DELETOR_CONDITIONAL(CLASS, VAR_PTR, CONDITION)\
    boost::scoped_ptr<CLASS> auto__deletor__for__ ## VAR_PTR (\
    (boost::lambda::if_then_else_return(boost::lambda::_1, VAR_PTR,\
        static_cast<CLASS*>(0))) (CONDITION))

I should use if_then_else_return instead of if_then_else.

Thanks for help.

B/Rgds
Max



----- Original Message -----
From: Steven Watanabe <watanabesj_at_[hidden]>
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] [lambda] Should the code compile?
Date: 2008-12-31 00:51:01

AMDG

Max wrote:
> I have the following simple code, but doesn't get compiled:
>
> #define DECLARE_PTR_AUTO_DELETOR_CONDITIONAL(CLASS, VAR_PTR, CONDITION)\
>     boost::scoped_ptr auto__deletor__for__ ## VAR_PTR (\
>     boost::lambda::ret(boost::lambda::if_then_else(_1,\
>         VAR_PTR, static_cast(0)))(static_cast(CONDITION)))
>   

That's not the correct syntax for static_cast

In Christ,
Steven Watanabe

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