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why all c++ program must have default constructor?
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Answer Posted / sourisengupta
When you create a Object with no arguments, the compiler automatically creates a default constructor internally. But when you use parameterized constructor in your code then you need to provide the default constructor in your code so that the compiler does not throw any errors at compile time.
It also depends on compiler. some compiler also supports this feature. then you do not need to write default constructor in the code.
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