In C programming language, can you explain the purpose and function of (int)(unsigned char)(x)?

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The expression (int)(unsigned char)(x) is a type-casting operation that converts the variable "x" into an integer representation. This expression first converts the value of "x" into an unsigned char type, which ensures that the value is within the range of 0 to 255. Then, it is converted to an integer type, which updates the value of "x" to an integer representation while retaining its original value.

This type-casting operation is useful in situations where variables need to be represented as integers, such as when implementing bitwise operations or when storing data in memory.