[aspectc-user] pointer bug?

[Olaf Spinczyk]

Hi,

shyam sunder wrote:
> Pointers seems all messed up. Have a look:
> 
> main.acc:
> 
> #include <cstring>
> #include <iostream>
> 
> void foo(void* x)
> {
> 	cout << "in foo: " << x << endl;
> }
> 
> int main()
> {
> 	char x[]="asdf";
> 	cout << "in main: " << (void*)x << endl;
> 	foo(x);
> }
> 
> ------------------------------------------------
> Test.ah:
> 
> #include <iostream>
> 
> aspect Test
> {
> public:
> 	pointcut method1() = call("% foo(...)");
> 
> 	advice method1() : before()
> 	{
> 		cout << "in aspect: " << (tjp->arg(0)) << endl;
> 	}
> };
> 
> -----------------------------------------------
> 
> ac++ -p. -c main.acc -o main.cpp
> g++2 main.cpp
> 
> output:
> 
> in main: 0xbffff7d0
> in aspect: 0xbffff7b0
> in foo: 0xbffff7d0
> 
> -----------------------------------------------
> 
> Whats wrong with this picture?

It is no error. In main and foo you print the address of the first 
character in your array while tjp->arg(0) is a pointer to this pointer. 
If you want to print the string in the aspect, use:

cout << *(char**)tjp->arg(0) << endl;

Regards,

Olaf
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