Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / shivi jain
new and delete are C++ specific features. They didn't exist in C. malloc is the old school C way to do things. Most of the time, you won't need to use it in C++.
malloc allocates uninitialized memory. The allocated memory has to be released with free.
calloc is like malloc but initializes the allocated memory with a constant (0). It needs to be freed with free.
new initializes the allocated memory by calling the constructor (if it's an object). Memory allocated with new should be released with delete (which in turn calls the destructor). It does not need you to manually specify the size you need and cast it to the appropriate type. Thus, it's more modern and less prone to errors.
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
What is oops and why we use oops?
What is class and example?
Following are the class specifications: class {int a}; class {int b}; Using friend funtion,calculate the max of two objects and display it.
What are functions in oop?
What is oops in simple words?
Can we create object of abstract class?
Why do we use class?
Why do while loop is used?
What are the three main types of variables?
What is inheritance write a program to show use of inheritance?
This program numbers the lines found in a text file. Write a program that reads text from a file and outputs each line preceded by a line number. Print the line number right-adjusted in a field of 3 spaces. Follow the line number with a colon, then one space, then the text of the line. You should get a character at a time and write code to ignore leading blanks on each line. You may assume that the lines are short enough to fit within a line on the screen. Otherwise, allow default printer or screen output behavior if the line is too long (i.e., wrap or truncate). A somewhat harder version determines the number of spaces needed in the field for the line numbers by counting lines before processing the lines of the file. This version of the program should insert a new line after the last complete word that will fit within a 72-character line.
What is advantage of inheritance?
What is encapsulation and abstraction? How are they implemented in C++?
What are oops methods?
What is encapsulation selenium?
