Type Conversion:
Type Conversion is also known as Typecasting. Typecasting is converting one data type into another one.
There are two types of Type Conversion:
1. Implicit Type Conversion:
Implicit Type casting means losing its original meaning. This type of typecasting is essential when you want to change data types without changing the significance of the value stored in the variable. Implicit type Conversion in C happens automatically when a value is copied to its compatible data type.
Example:
#include <stdio.h>int main() {int integerNumber = 10;double doubleNumber;// Implicit conversion (int to double)doubleNumber = integerNumber;// Displaying valuesprintf(“Integer Number: %dn”, integerNumber);printf(“Double Number: %fn”, doubleNumber);return 0;}
In this example, the integer variable integerNumber is implicitly converted to a double when assigned to doubleNumber.
Output:
Integer Number: 10
Double Number: 10.000000
2. Explicit Type Conversion:
Explicit type conversion, also known as “casting,” is performed by the programmer and involves specifying the desired type using casting operators. This is useful when you want to enforce a specific type conversion or when converting from a “larger” type to a “smaller” one, which may result in data loss.
Example:
#include <stdio.h>
int main() {
double doubleNumber = 3.14;
int integerNumber;// Explicit conversion (double to int)
integerNumber = (int)doubleNumber;// Displaying values
printf(“Double Number: %fn”, doubleNumber);
printf(“Integer Number: %dn”, integerNumber);
return 0;}
Output:
Double Number: 3.140000
Integer Number: 3