Practice
Resources
Contests
Online IDE
New
Free Mock
Events New Scaler
Practice
Improve your coding skills with our resources
Contests
Compete in popular contests with top coders
logo
Events
Attend free live masterclass hosted by top tech professionals
New
Scaler
Explore Offerings by SCALER

Type Conversion

C++ allows us to convert data of one type to that of another. This is known as type conversion.

There are two types of type conversion in C++.

  1. Implicit Conversion
  2. Explicit Conversion (also known as Type Casting)

Implicit Type Conversion

The type conversion that is done automatically done by the compiler is known as implicit type conversion. This type of conversion is also known as automatic conversion.

int a = 10;
char b = 'A';
a = a + b; // y implicitly converted to int. ASCII value of 'A' is 65
cout<<a<<endl;
// value of a is 75(10 + 65)

int num_int; double num_double = 10.79; // implicit conversion // assigning a double value to an int variable num_int = num_double;
// Value of num_int will be 10
// Here, the double value is automatically converted to int by the compiler before it is assigned to the num_int variable.
This is also an example of implicit type conversion.

Explicit Conversion

When the user manually changes data from one type to another, this is known as explicit conversion. This type of conversion is also known as type casting.

There are two major ways in which we can use explicit conversion in C++. They are:

  1. C-style type casting (also known as cast notation)
  2. Type conversion operators

C-style Type Casting

This is done by explicitly defining the required type in front of the expression in parenthesis. This can be also considered as forceful casting.

(data_type)expression;

Example:

int a = 10;
char b = 'A';
a = a + (int)b;
cout<<a<<endl;
// value of a is 75

Type conversion operators

C++ also has four operators for type conversion:

  1. static_cast
  2. dynamic_cast
  3. const_cast
  4. reinterpret_cast
float f = 4.5;   
// using cast operator
int b = static_cast<int>(f);
cout << b;
// value of b is 4

To learn more about typecasting click here

Try the following example in the editor below.

You are given a character called ch, print the ASCII value of the character.

Example Input:

ch = 'a'

Example Output:

97
Start solving Type Conversion on Interview Code Editor
Hints
  • Complete Solution

Discussion


Loading...
Click here to start solving coding interview questions
Free Mock Assessment
Fill up the details for personalised experience.
Phone Number *
OTP will be sent to this number for verification
+1 *
+1
Change Number
Graduation Year *
Graduation Year *
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
*Enter the expected year of graduation if you're student
Current Employer
Company Name
College you graduated from
College/University Name
Job Title
Job Title
Engineering Leadership
Software Development Engineer (Backend)
Software Development Engineer (Frontend)
Software Development Engineer (Full Stack)
Data Scientist
Android Engineer
iOS Engineer
Devops Engineer
Support Engineer
Research Engineer
Engineering Intern
QA Engineer
Co-founder
SDET
Product Manager
Product Designer
Backend Architect
Program Manager
Release Engineer
Security Leadership
Database Administrator
Data Analyst
Data Engineer
Non Coder
Other
Please verify your phone number
Edit
Resend OTP
By clicking on Start Test, I agree to be contacted by Scaler in the future.
Already have an account? Log in
Free Mock Assessment
Instructions from Interviewbit
Start Test