HCLTech Associate Software Engineer Interview Questions and Answers for Freshers

Q1. What is const pointer
Ans. 
A const pointer is a pointer that points to a constant value and cannot be used to modify the value it points to.
• A const pointer is declared using the 'const' keyword before the pointer type.

• Example: const int *ptr; // pointer to a constant integer value

• The value pointed to by a const pointer cannot be modified.

• Example: *ptr = 10; // This will result in a compilation error
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Q2. What is pointer to constant
Ans. 
Pointer to constant is a pointer that points to a constant value, meaning the value cannot be changed through the pointer.
• Pointer to constant is declared using 'const' keyword before the data type.

• The value pointed to by a pointer to constant cannot be modified.

• Example: const int *ptr; // Pointer to constant integer
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