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Re: GURU NEEDED : macro SQUARE(x) for any type x

From: Gert-Jan de Vos
Subject: Re: GURU NEEDED : macro SQUARE(x) for any type x
Date: Fri, 14 Jan 2011 00:51:43 -0800 (PST)
User-agent: G2/1.0

On Jan 14, 7:46 am, bolega <address@hidden> wrote:
> Basically, I have spent a few hours experimenting and searching on the
> comp.lang.c/c++
> Let me use SQR for brevity and saving line
> Here are progressively refined macros :
> #define SQR(x) ((x)*(x))
> #define SQR(x) ({typedef xtype=x; xtype xval=x; xval*xval})  // NOTE,
> closure or {} inside () is a valid idea in C, and thus no return is
> needed.
> this macro is given in several posts like
> there is a problem with typedef
> Bolega

Why not just an inline function template (this being c.l.c++)?

template <typename T>
inline T square(T value)
    return value*value;


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