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In this example <tt>printValue()</tt> calls another member function <tt>getValue()</tt>.
<p>
In the function <tt>f1()</tt> we pass the <tt>Item</tt> as a <strong>const reference</strong>.
<p>
Determine whether <tt>printValue()<tt> and/or <tt>getValue</tt> need to be marked as <tt>const</tt> member functions.

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Copied from problem cpp/cs104/classes/const_members (author: redekopp@usc.edu)
Copied from problem cpp/cs104/classes/this_scope (author: redekopp@usc.edu)

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Correct answer
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Template / Reference solution

#include <iostream>

using namespace std;

class Item {
public:
// experiement with placing const
// after the member func. declaration
void printValue() \[ REDACTED ]\ ;
int getValue() \[ REDACTED ]\
{ return value; }
void setValue(int value);
private:
int value;
};

// If you mark a member function const in the declaration
// you need to also add 'const' in the definition
void Item::printValue() \[ REDACTED ]\
{
cout << this->getValue() << endl;
}

void Item::setValue(int val)
{
this->value = val;
}

// experiment
void f1(const Item& i)
{
i.printValue();

}
int main()
{
Item x;
x.setValue(2);
f1(x);
return 0;
}

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Property	Value
Description html markup shown to student	In this example <tt>printValue()</tt> calls another member function <tt>getValue()</tt>. <p> In the function <tt>f1()</tt> we pass the <tt>Item</tt> as a <strong>const reference</strong>. <p> Determine whether <tt>printValue()<tt> and/or <tt>getValue</tt> need to be marked as <tt>const</tt> member functions.
Epilogue html markup shown when solved	remove
Public permissions	remove
Remarks Comments, history, license, etc.	Copied from problem cpp/cs104/classes/const_members (author: redekopp@usc.edu) Copied from problem cpp/cs104/classes/this_scope (author: redekopp@usc.edu) remove
Engine
Choices json list of string, bool pairs e.g. `[["good", true], ["bad", false]]`
Correct answer
Template / Reference solution
Template / Reference solution	#include <iostream> using namespace std; class Item { public: // experiement with placing const // after the member func. declaration void printValue() \[ REDACTED ]\ ; int getValue() \[ REDACTED ]\ { return value; } void setValue(int value); private: int value; }; // If you mark a member function const in the declaration // you need to also add 'const' in the definition void Item::printValue() \[ REDACTED ]\ { cout << this->getValue() << endl; } void Item::setValue(int val) { this->value = val; } // experiment void f1(const Item& i) { i.printValue(); } int main() { Item x; x.setValue(2); f1(x); return 0; }
Java test suite See manual
C++ test suite json list of stdin/args tests e.g. `[{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]` to just run once with no input use `[{}]`	[{}]
C++ test suite See manual
Forbidden substrings json list of strings e.g. `["for","while"]`	remove
Solution visibility	remove
Java imports json list of importables e.g. `["java.util.*"]`	remove
Override Java classname else defaults to websheet name	remove
Dependent on other websheets? json list of websheet names in this folder e.g. `["DataStructure"]`	remove
Is example? i.e., just a demo	remove
Add compiler flag(s) json list of flags e.g. `["-Wno-unused-variable"]`	remove
Remove default compiler flag(s) json list of flags see default_cppflags e.g. `["-Wno-write-strings"]`	["-Wno-shadow", "-Wno-self-assign"] remove

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