C Type Casting

In C language type casting or type conversion is a way to convert one data type into another. There are two types of type conversion. They are following:

1. Implicit type conversion
2. Explicit type conversion

Implicit type conversion

C automatically converts one type of data into another. This automatic conversion is known as implicit conversion. Such as if you put an integer value into a floating type variable the compiler will convert the integer value into float automatically. For example:

int a = 53;
float b;
b = a;

Explicit type conversion

The way to force a type conversion it is called explicit conversion. The syntax of explicit conversion is following:

(type_name) expression

Here type_name is one of the standard C data types. The expression may be a constant, variable or an expression. An example of explicit conversion is given below:

#include <stdio.h>
int main() {
  float num;
  num = (float) 27/7;
  printf("%f", num);
  return 0;
}

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