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RINT(3) Library Functions Manual RINT(3) NAME nearbyint, nearbyintf, nearbyintl, rint, rintf, rintl - round to integral value in floating-point format LIBRARY Math Library (libm, -lm) SYNOPSIS #include <math.h> double nearbyint(double x); float nearbyintf(float x); long double nearbyintl(long double x); double rint(double x); float rintf(float x); long double rintl(long double x); DESCRIPTION The rint(), rintf(), and rintl() functions return the integral value nearest to x according to the prevailing rounding mode. These functions raise an inexact exception when the original argument is not an exact integer. The nearbyint(), nearbyintf(), and nearbyintl() functions perform the same operation, except that they do not raise an inexact exception. SEE ALSO abs(3), ceil(3), fabs(3), fenv(3), floor(3), lrint(3), math(3), round(3) HISTORY A rint() function appeared in Version 6 AT&T UNIX. NetBSD 8.0 September 13, 2015 NetBSD 8.0