c++ round down code example

Example 1: nearest integer rounding in c++

cout << "Nearest value of x :" << round(x) << "\n";

Example 2: floor() in c++

floor(x):This function in C++ returns the smallest possible integer value which is smaller
 than or equal to the given argument.
Input : 2.5 ,-2.1 ,2.9
Output : 2 ,-3, 2