What is mean of cast operator?

Answer 1

A cast operator explicitly converts a value to the specified data type.

The following are common cast operators in C.

(int)

(char)

(string) *i'm not completely sure this is the one for string*

Placing any of these cast operators in front of any variable or expression will convert its value to the specified type. If you have the number 4 stored as a character in the variable x, then you may use the cast (int) so that the number will be seen as an integer value for mathematical operations. See below:

int main()

{

char x = 4;

int answer;

// Perform the operation, 5 - x

// You may be tempted to use the following code to perform the operation:

answer = 5 - x;

//Doing this will result in a garbage value for answer.

//The following will give the proper answer

answer = 5 - (int)x;

}