Given `int a = 10; float b = 3.0;`, which of the following expressions will result in a floating-point value? A) `a % b` B) `a + (int)b` C) `a / b` D) `a - b`
Understand the Problem
The question asks us to identify which expression, given an integer a and a float b, will result in a floating-point value in C++. We need to evaluate each expression based on C++'s type conversion rules during arithmetic operations.
Answer
`a / b` will result in a floating-point value.
The expression a / b will result in a floating-point value. This is because when you divide an integer by a float, the result is a float.
Answer for screen readers
The expression a / b will result in a floating-point value. This is because when you divide an integer by a float, the result is a float.
More Information
In most programming languages, when performing arithmetic operations between different data types (like integers and floating-point numbers), the result will usually be converted to the more precise data type, which in this case is float.
Tips
A common mistake is to assume that integer division always results in a float. Integer division truncates the decimal part, resulting in an integer value. However, when one of the operands is a float, the result will be a float.
Sources
- Is 'float a = 3.0;' a correct statement? - c++ - Stack Overflow - stackoverflow.com
- [PDF] C PROGRAMMING - Vardhaman College of Engineering - vardhaman.org
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