Question

In C++, write the declaration of a pointer to a GradeInfo structure. Use the pointer to dynamically allocate one GradeInfo instance.

Answer 1

In C++, a pointer to a GradeInfo structure can be declared and a single instance can be dynamically allocated using the new operator. The pointer should then be deallocated with the delete operator to prevent memory leaks.

Step-by-step explanation:

To declare a pointer to a GradeInfo structure and dynamically allocate one instance of it in C++, you would first need to define the GradeInfo structure. Following that, you can declare a pointer and use the new operator to allocate memory for a single instance of GradeInfo.

Here is an example of how it might look:

struct GradeInfo {
// Assume GradeInfo members are defined here
};

// Declaration of a pointer to a GradeInfo
GradeInfo *gradeInfoPtr;

// Dynamically allocate one GradeInfo instance
gradeInfoPtr = new GradeInfo;

Remember to deallocate the memory using the delete operator when you are done with the pointer to prevent memory leaks.

delete gradeInfoPtr;