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Which of the following comments about arrays and pointers is/are true?
1. Both are exactly same.
2. Array is a constant pointer.
3. Pointer is an one-dimensional array.
4. Pointer is a dynamic array.
1. Both are exactly same.
2. Array is a constant pointer.
3. Pointer is an one-dimensional array.
4. Pointer is a dynamic array.
- a)1,3 and 4
- b)1, 2, and 3
- c)2, 3 and 4
- d)1,2, 3 and 4
Correct answer is option 'D'. Can you explain this answer?
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Which of the following comments about arrays and pointers is/are true?...
Array and pointer are same in implementation. By using pointer we can access any of the index array. Array is a constant pointer and pointer is a one dimensional dynamic array.
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Which of the following comments about arrays and pointers is/are true?...
Arrays and Pointers
Arrays and pointers are closely related concepts in C programming, but they are not exactly the same. Let's discuss each statement in detail to understand the differences between arrays and pointers.
1. Both are exactly same.
- This statement is not true. Arrays and pointers are not exactly the same. An array is a collection of elements of the same data type stored in contiguous memory locations, while a pointer is a variable that stores the memory address of another variable.
2. Array is a constant pointer.
- This statement is not true. An array is not a constant pointer. Arrays and pointers have some similarities, but they are different concepts. An array name represents the base address of the array, which is a constant pointer pointing to the first element of the array.
3. Pointer is a one-dimensional array.
- This statement is not true. A pointer is not an array. While pointers can be used to access elements of an array, they are not the same thing. An array is a collection of elements, while a pointer is a variable that stores a memory address.
4. Pointer is a dynamic array.
- This statement is not true. Pointers can be used to dynamically allocate memory for arrays, but a pointer itself is not a dynamic array. A dynamic array is an array whose size can be changed at runtime, while a pointer is simply a variable that stores a memory address.
In conclusion, while arrays and pointers have some similarities and can be used together in C programming, they are not exactly the same. Arrays are collections of elements stored in contiguous memory locations, while pointers are variables that store memory addresses. Understanding the differences between arrays and pointers is important for writing efficient and effective C programs.
Arrays and pointers are closely related concepts in C programming, but they are not exactly the same. Let's discuss each statement in detail to understand the differences between arrays and pointers.
1. Both are exactly same.
- This statement is not true. Arrays and pointers are not exactly the same. An array is a collection of elements of the same data type stored in contiguous memory locations, while a pointer is a variable that stores the memory address of another variable.
2. Array is a constant pointer.
- This statement is not true. An array is not a constant pointer. Arrays and pointers have some similarities, but they are different concepts. An array name represents the base address of the array, which is a constant pointer pointing to the first element of the array.
3. Pointer is a one-dimensional array.
- This statement is not true. A pointer is not an array. While pointers can be used to access elements of an array, they are not the same thing. An array is a collection of elements, while a pointer is a variable that stores a memory address.
4. Pointer is a dynamic array.
- This statement is not true. Pointers can be used to dynamically allocate memory for arrays, but a pointer itself is not a dynamic array. A dynamic array is an array whose size can be changed at runtime, while a pointer is simply a variable that stores a memory address.
In conclusion, while arrays and pointers have some similarities and can be used together in C programming, they are not exactly the same. Arrays are collections of elements stored in contiguous memory locations, while pointers are variables that store memory addresses. Understanding the differences between arrays and pointers is important for writing efficient and effective C programs.
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