How would you ensure a strict type conversion from float to int?

• A. Implicit conversion in the assignment
• B. Use explicit cast: int rounded = (int)f;
• C. Change the data type to double
• D. Use a function like atof

Answer: (B)

Explicit casting is how you force a floating-point value to become an integer, making the conversion intentional rather than left to the language’s automatic rules. Writing something like int rounded = (int)f; signals that you want to drop the fractional part and store an integer result. The cast ensures a strict, deliberate conversion and makes the exact behavior explicit (for floats, this typically truncates toward zero).

Relying on implicit conversion during assignment would let the compiler decide whether and how to convert, which can hide loss of precision and vary by language or context. Changing the data type to double doesn’t perform the conversion to int at all, it just stores a larger floating-point value. A function like atof converts strings to floating-point numbers, not a float-to-int conversion. If you need true rounding instead of truncation, you’d apply a rounding function (e.g., round) after or instead of the cast.