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Re: about gcc library
On Tue, Apr 08, 2003 at 12:29:17PM -0400, Mehdi Khaldi wrote:
> Hi,
> How to check if a pointer is allocated or not?
>
> I do "if(p == NULL)". This assumes that the developer did "p = NULL;"
> But if he didn't do that, how can I know if the pointer is allocated or not?
>
> Example :
>
> Int *p;
>
> If(p == NULL)
> Printf("P = NULL\n");
> Else
> Memset(p, 0, sizeof(int));
>
> I'd like to know if the pointer is allocated.
That's not how the C language works. You need a textbook. This list is
for the development /of/ GCC itself, not how to program in C.
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