Why Does Integer Division of 3 by 5 Result in Zero?

Division Issue Resulting in Zero Despite Double Storage

In numerical operations, it is important to consider the types of operands involved. When working with floating-point numbers, explicit type casting may be necessary to avoid unexpected results.

In the provided code snippet, the division operation between 3 and 5 is performed using integer operands, leading to integer division. This results in zero as the quotient. To obtain the desired floating-point division, it is necessary to explicitly cast at least one of the operands to a double type. The corrected code is given below:

#include <iostream>

int main(int argc, char** argv) {
  double f = 3.0 / 5;
  std::cout << f;
  return 0;
}

By casting 3 to a double (3.0), the compiler performs floating-point division, resulting in the expected non-zero value. This highlights the importance of paying attention to operand types in numerical operations to achieve accurate results.

The above is the detailed content of Why Does Integer Division of 3 by 5 Result in Zero?. For more information, please follow other related articles on the PHP Chinese website!