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Is it possible to declare a variable in c++ without instantiating it? I want to do something like this:
Animal a; if( happyDay() ) a( "puppies" ); //constructor call else a( "toads" ); Basially, I just want to declare a outside of the conditional so it gets the right scope.
Is there any way to do this without using pointers and allocating a on the heap? Maybe something clever with references?
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If you declare a final variable later on you cannot modify or, assign values to it. Moreover, like instance variables, final variables will not be initialized with default values.
Declaration tells the compiler about the existence of an entity in the program and its location. When you declare a variable, you should also initialize it. Initialization is the process of assigning a value to the Variable. Every programming language has its own method of initializing the variable.
Objects can be initialized using new Object() , Object. create() , or using the literal notation (initializer notation). An object initializer is a comma-delimited list of zero or more pairs of property names and associated values of an object, enclosed in curly braces ( {} ).
You can't declare a variable without calling a constructor. However, in your example you could do the following:
Animal a(happyDay() ? "puppies" : "toads"); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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