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adding the curly braces

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This commit is contained in:
Jidong Xiao
2023-12-01 01:28:17 -05:00
parent 400acaae68
commit f0ddee4c85
1 changed files with 6 additions and 4 deletions
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10
lectures/26_inheritance/README.md
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@@ -254,8 +254,9 @@ Note: We’ve used the same pointer variable (p_ptr) to point to objects of two
```cpp ```cpp
double area = 0; double area = 0;
for (std::list<Polygon*>::iterator i = polygons.begin(); i!=polygons.end(); ++i) for (std::list<Polygon*>::iterator i = polygons.begin(); i!=polygons.end(); ++i){
area += (*i)->Area(); area += (*i)->Area();
}
``` ```
Which Area function is called? If *i points to a Triangle object then the function defined in the Triangle Which Area function is called? If *i points to a Triangle object then the function defined in the Triangle
@@ -265,8 +266,9 @@ class would be called. If *i points to a Quadrilateral object then Quadrilateral
```cpp ```cpp
int count = 0; int count = 0;
for (std::list<Polygon*>::iterator i = polygons.begin(); i!=polygons.end(); ++i) for (std::list<Polygon*>::iterator i = polygons.begin(); i!=polygons.end(); ++i){
count += (*i)->IsSquare(); count += (*i)->IsSquare();
}
``` ```
If Polygon::IsSquare had not been declared virtual then the function defined in Polygon would always be If Polygon::IsSquare had not been declared virtual then the function defined in Polygon would always be