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course content

Зміст курсу

C++ Pointers and References

1. Pointers Fundamentals

Introduction to PointerAssigning Addresses to PointersLink Between Pointer and VariablePointers Use Cases

2. Pointer Arithmetic

Introduction to Pointer ArithmeticPointer Arithmetic PracticeArrays and Pointers ConnectionArray Pointer Arithmetic Practice

3. References Fundamentals

Introduction to ReferencesReference Use CasesRvalue and Lvalue ReferencesReference vs Pointers

4. Dynamic Memory Allocation

Introduction to MemoryDynamic AllocationDynamic Allocation of the ArrayPointer to Pointer Dynamic AllocationSummary and Overview

C++ Pointers and References

Pointer to Pointer Dynamic AllocationPointer to Pointer Dynamic Allocation

A pointer to pointer, denoted as double pointer (**).

This is a pointer that holds the memory address of another pointer. In simple words, it is a variable whose value is the address of another pointer. This concept might sound complex at first, but it provides a powerful mechanism for dealing with advanced dynamic memory allocation.

Syntax

cpp

main.cpp

  • ptr1: is a pointer to an integer (int*);
  • ptr2: is a double pointer to an integer (int**).

Dynamic Allocation of a Two-Dimensional Array

If you want to create a two-dimensional array dynamically (at runtime) you have to use a pointer to a pointer for the rows.

And then initialize each row with dynamic array (like in previous chapter)

Завдання

  • Dynamically allocate a two dimensional array.
  • Dynamically allocate the arrays as elements.
  • Free all allocated memory.

Все було зрозуміло?

Секція 4. Розділ 4
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course content

Зміст курсу

C++ Pointers and References

1. Pointers Fundamentals

Introduction to PointerAssigning Addresses to PointersLink Between Pointer and VariablePointers Use Cases

2. Pointer Arithmetic

Introduction to Pointer ArithmeticPointer Arithmetic PracticeArrays and Pointers ConnectionArray Pointer Arithmetic Practice

3. References Fundamentals

Introduction to ReferencesReference Use CasesRvalue and Lvalue ReferencesReference vs Pointers

4. Dynamic Memory Allocation

Introduction to MemoryDynamic AllocationDynamic Allocation of the ArrayPointer to Pointer Dynamic AllocationSummary and Overview

C++ Pointers and References

Pointer to Pointer Dynamic AllocationPointer to Pointer Dynamic Allocation

A pointer to pointer, denoted as double pointer (**).

This is a pointer that holds the memory address of another pointer. In simple words, it is a variable whose value is the address of another pointer. This concept might sound complex at first, but it provides a powerful mechanism for dealing with advanced dynamic memory allocation.

Syntax

cpp

main.cpp

  • ptr1: is a pointer to an integer (int*);
  • ptr2: is a double pointer to an integer (int**).

Dynamic Allocation of a Two-Dimensional Array

If you want to create a two-dimensional array dynamically (at runtime) you have to use a pointer to a pointer for the rows.

And then initialize each row with dynamic array (like in previous chapter)

Завдання

  • Dynamically allocate a two dimensional array.
  • Dynamically allocate the arrays as elements.
  • Free all allocated memory.

Все було зрозуміло?

Секція 4. Розділ 4
toggle bottom row
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