neingeist/cpp-exercises
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make some methods const

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This commit is contained in:
neingeist 2014-04-14 09:10:17 +02:00
parent 9092970b7d
commit 86c0368a04
2 changed files with 4 additions and 4 deletions
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2
accumulate.cpp
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@ -9,7 +9,7 @@
int myfunction (int x, int y) { return x+2*y; } int myfunction (int x, int y) { return x+2*y; }
struct myclass { struct myclass {
int operator()(int x, int y) { return x+3*y; } int operator()(int x, int y) const { return x+3*y; }
} myobject; } myobject;
int main() { int main() {

6
classes.cpp
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@ -4,7 +4,7 @@
class Animal { class Animal {
public: public:
// Note: using *virtual* does the difference here! // Note: using *virtual* does the difference here!
virtual void makeSound() { virtual void makeSound() const {
std::cout << "<generic animal sound> from " << this << std::endl; std::cout << "<generic animal sound> from " << this << std::endl;
} }
@ -18,14 +18,14 @@ class Animal {
class Cow : public Animal { class Cow : public Animal {
public: public:
void makeSound() { void makeSound() const {
std::cout << "Mooh. from " << this << std::endl; std::cout << "Mooh. from " << this << std::endl;
} }
}; };
class Cat : public Animal { class Cat : public Animal {
public: public:
void makeSound() { void makeSound() const {
std::cout << "Meow? from " << this << std::endl; std::cout << "Meow? from " << this << std::endl;
} }
}; };