|
|
|---|
| 34 |
// invoke cbOne function through callback instance |
34 |
// invoke cbOne function through callback instance |
| 35 |
double retOne; |
35 |
double retOne; |
| 36 |
retOne = one (10.0, 20.0); |
36 |
retOne = one (10.0, 20.0); |
|
|
37 |
// cast retOne to void, to suppress variable ‘retOne’ set but |
| 38 |
// not used compiler warning |
| 39 |
(void) retOne; |
| 37 |
|
40 |
|
| 38 |
// return type: int |
41 |
// return type: int |
| 39 |
// first arg type: double |
42 |
// first arg type: double |
|
|
|---|
| 46 |
// invoke MyCb::cbTwo through callback instance |
49 |
// invoke MyCb::cbTwo through callback instance |
| 47 |
int retTwo; |
50 |
int retTwo; |
| 48 |
retTwo = two (10.0); |
51 |
retTwo = two (10.0); |
| 49 |
|
52 |
// cast retTwo to void, to suppress variable ‘retTwo’ set but |
|
|
53 |
// not used compiler warning |
| 54 |
(void) retTwo; |
| 50 |
two = MakeNullCallback<int, double> (); |
55 |
two = MakeNullCallback<int, double> (); |
| 51 |
// invoking a null callback is just like |
56 |
// invoking a null callback is just like |
| 52 |
// invoking a null function pointer: |
57 |
// invoking a null function pointer: |