RINT(3) Linux Programmer's Manual RINT(3)
rint - round to closest integer
#include <math.h> double rint(double x);
The rint() function rounds x to an integer value according to the prevalent rounding mode. The default rounding mode is to round to the nearest integer.
The rint() function returns the integer value as a float- ing-point number.
BSD 4.3
abs(3), ceil(3), fabs(3), floor(3), labs(3) June 6, 1993 1