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No. it's not required
The C++ language guarantees that delete p will do nothing if p is equivalent to NULL. As you might get the test backwards, and as most testing methodologies force you for performs test explicitly every branch point, you should not put in the redundant if test.
Wrong:
if (p != NULL)
delete p; Right: delete p;
Friend function in c++: class miles; class km { float value; public : // void input(); km convert(km ,int a ) ; void output() {
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i want to check the command line argument is whether an integer or a string
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Ask queCreate an object oriented application with C# that computes the area of a rectangle, and the area and the volume of a cuboid. Based on the inheritance concept, create a bas
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