std floor
The C++
floor()function returns the largest possible integer value which is less than or equal to the given argument and it takes a single argument , it is defined in <cmath> header file.
floor function
Syntax
floor(double num);
Parameters
The floor() function takes a one argument.
num– a floating point number can bedouble,float&long double
Return value
Returns the largest possible integer value which is less than or equal to num.
cpp floor
floor() prototype [As of C++ 11 standard]
double floor(double num); float floor(float num); long double floor(long double num); // for integral types double floor(T num);
Example : C++ floor()
#include <iostream> #include <cmath> using namespace std; int main() { double num, result; num = 11.21; result = floor(num); cout << "Floor of " << num << " = " << result << endl; num = -33.44; result = floor(num); cout << "Floor of " << num << " = " << result << endl; num = 0.11; result = floor(num); cout << "Floor of " << num << " = " << result; return 0; }
Output
Floor of 11.21 = 11 Floor of -33.44 = -34 Floor of 0.11 = 0