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6.2

what is equivalent of "null" in C++?

Asked by csound in C++ Programming Language, Microsoft Visual C++

Tags: null

The code below is Java code. I want to write C++ version of this code.
class A
{
A()
{}
}

static A foo(boolean error)
{
if(error)
return null;

else
return new A();

}

public void main(String [] args)
{

A a=foo(true)
if(a==null)
System.out.println("A is null!");
}

And the following code is my attempt in C++
class A
{
};

A foo(bool error)
{
if(error)
return null;
else
{
A a;
return a;
}

}

int main()
{
A a;
a=foo(ture);

if(a==null)
printf("a is null!");

}

However, since C++ does not seem to have type "null", the compiler gives an error.

Could anyone tell me the equivalent of "null" in C++?
[+][-]06/07/06 06:29 PM, ID: 16858043Accepted Solution

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About this solution

Zones: C++ Programming Language, Microsoft Visual C++
Tags: null
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Solution Provided By: List244
Participating Experts: 10
Solution Grade: A
 
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