[aspectc-user] Around advice and return values

[Loesch Felix (CR/AEF4)]

Hello,

I tried to use around advice with return values with AspectC++, but I
was unable to use return values inside
advice code.

I tried the following example code but always got the following error of
the AspectC++ compiler:

--- error begin ---

../MinValue.ah: In member function `void MinValue::__a0_around(int, int,
int)':
../MinValue.ah:9: error: return-statement with a value, in function
declared 

--- error end ----


---- begin main.cpp ----
#include <stdio.h>
using namespace std;

// compute max value of i, j, k
int REF(int i, int j, int k) {
    int max = 0;
    max = i;
    if (j > max) { max = j; }
    if (k > max) { max = k; }
    return max;
}

int main() {
   printf("Reference value: %d", REF(3,5,4));
} 
--- end main.cpp---

MinValue.ah

--- begin MinValue.ah ----
#include <stdio.h>

#include <stdio.h>

aspect MinValue {
	advice call("int REF(...)") && args(i,j,k) : int around(int
i,int j,int k) {
		int min = 0;
		min = i;
		if (j < min) { min = j; }
		if (k < min) { min = k; }
		return min;
	}
};

--- end MinValue.ah --- 

- Why does AspectC++ declare the inlined function as "void"? 
- Why does AspectC++ not support return types of functions that are
replaced by "around" advice?
- Is there a workaround to support return statements in advice code?


--
Felix Loesch