new-operator

What is the ‘new’ keyword in JavaScript?

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It does 5 things: It creates a new object. The type of this object is simply object. It sets this new object’s internal, inaccessible, [[prototype]] (i.e. __proto__) property to be the constructor function’s external, accessible, prototype object (every function object automatically has a prototype property). It makes the this variable point to the newly created object. It executes the constructor function, using the newly created … Read more

Expression must have class type

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It’s a pointer, so instead try: Basically the operator . (used to access an object’s fields and methods) is used on objects and references, so: If you have a pointer type, you have to dereference it first to obtain a reference: The a->b notation is usually just a shorthand for (*a).b. A note on smart … Read more

How to dynamically allocate arrays in C++

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for arrays (which is what you want) or for single elements. But it’s more simple to use vector, or use smartpointers, then you don’t have to worry about memory management. L.data() gives you access to the int[] array buffer and you can L.resize() the vector later. L.get() gives you a pointer to the int[] array.

How to dynamically allocate arrays in C++

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for arrays (which is what you want) or for single elements. But it’s more simple to use vector, or use smartpointers, then you don’t have to worry about memory management. L.data() gives you access to the int[] array buffer and you can L.resize() the vector later. L.get() gives you a pointer to the int[] array.