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       lrint, lrintf, lrintl, llrint, llrintf, llrintl - round to nearest integer


       #include <math.h>

       long int lrint(double x);
       long int lrintf(float x);
       long int lrintl(long double x);

       long long int llrint(double x);
       long long int llrintf(float x);
       long long int llrintl(long double x);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       All functions shown above:
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L


       These  functions  round  their  argument  to  the nearest integer value, using the current
       rounding direction (see fesetround(3)).

       Note that unlike the rint(3) family of functions,  the  return  type  of  these  functions
       differs from that of their arguments.


       These functions return the rounded integer value.

       If  x  is  a  NaN or an infinity, or the rounded value is too large to be stored in a long
       (long long in the case of the ll* functions), then a domain error occurs, and  the  return
       value is unspecified.


       See  math_error(7)  for information on how to determine whether an error has occurred when
       calling these functions.

       The following errors can occur:

       Domain error: x is a NaN or infinite, or the rounded value is too large
              An invalid floating-point exception (FE_INVALID) is raised.

       These functions do not set errno.


       These functions first appeared in glibc in version 2.1.


       For an explanation of the terms used in this section, see attributes(7).

       │InterfaceAttributeValue   │
       │lrint(), lrintf(), lrintl(),   │ Thread safety │ MT-Safe │
       │llrint(), llrintf(), llrintl() │               │         │


       C99, POSIX.1-2001, POSIX.1-2008.


       ceil(3), floor(3), lround(3), nearbyint(3), rint(3), round(3)


       This page is part of release 5.05 of the Linux man-pages project.  A  description  of  the
       project,  information  about  reporting  bugs, and the latest version of this page, can be
       found at

                                            2017-09-15                                   LRINT(3)