:: Re: [DNG] Making sense of C pointer…
Página Inicial
Delete this message
Reply to this message
Autor: Steve Litt
Data:  
Para: dng
Assunto: Re: [DNG] Making sense of C pointer syntax.
On Wed, 30 Mar 2016 08:23:16 -0300
Emiliano Marini <emilianomarini82@???> wrote:

> Edward, the only time the compiler allocates memory for data
> automatically is when using strings literals (as stated by Rainer
> previously)
>
> char *p = "Hola mundo."


Also when you have a struct as a local variable:

struct my_cool_struct mystruct;

Like the char pointer, it comes off the stack, not the heap it would
come off if you used malloc().

Actually, any local variable allocates memory off the stack. Consider:

int number_of_people;

The preceding allocates sizeof(int) bytes, for number_of_people, off
the stack.

SteveT

Steve Litt
March 2016 featured book: Quit Joblessness: Start Your Own Business
http://www.troubleshooters.com/startbiz