C++ round()

1 개요

C++ round()

#include <iostream>
#include <cmath>
using namespace std;
int main() {
    cout << round(3.14159) << endl; // 3
}

#include <iostream>
#include <iomanip>
using namespace std;
int main() {
    cout << setprecision(3) << 3.14159 << endl; // 3.14
    cout << setprecision(5) << 123.56789 << endl; // 123.57
}

2 같이 보기

• C++ floor()
• C++ ceil()
• C++ setprecision()
• C언어 round()
• 함수 round()

3 참고

• https://cplusplus.com/reference/cmath/round/