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Re: [CPROG] hvor er NULL lige defineret

----- Original Message ----- 
From: "Kim Schulz" <sslug@sslug>
>

> hejsa
> jeg har en linje:
> while((*m++ = *s++) != NULL);
>
> Basalt set en hurtig kopiering.
>
> nu er det så at jeg får :
> main.c:84: warning: comparison between pointer and integer
>
> når jeg compiler.
>
> Jeg har før fået nogle lignede fordi jeg ikke havde en header inkluderet
> som definerede en eller anden type.
> Så mit spørgsmål er nu. Hvad glemmer jeg/gør jeg galt?

NULL er defineret ved
#define NULL (void*)0

NULL er altså en pointer, men *m (contents of m) er sikkert en integer, eller
hvad.

mvh
/Kasper

 
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