any wrong with this piece of code?

[YYweii]

Hi all

my teacher say there is something wrong with this piece of code, but i
can't figure it out, help !

void GetMemory(char *p, int num)
{
p = new char[num];
}

int main()
{
char *p;
GetMemory(p, 100);
...
...
}

[Ian Collins]

Re: any wrong with this piece of code?

YYweii wrote:

Hi all
>
my teacher say there is something wrong with this piece of code, but i
can't figure it out, help !
>
void GetMemory(char *p, int num)
{
p = new char[num];

Think very carefully about what this line does. What does changing p do?

--
Ian Collins.

[YYweii]

Re: any wrong with this piece of code?

I see. Many thanks!