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    The following form allows you to view linux man pages.

    Command:

    lrint

    
    
    
    

    SYNOPSIS

           #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:
               _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE ||
               _POSIX_C_SOURCE >= 200112L;
               or cc -std=c99
    
    
    

    DESCRIPTION

           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.
    
    
    

    RETURN VALUE

           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.
    
    
    

    ERRORS

           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.
    
    
    

    VERSIONS

           These functions first appeared in glibc in version 2.1.
    
    
    

    ATTRIBUTES

       Multithreading (see pthreads(7))
           The lrint(), lrintf(), lrintl(),  llrint(),  llrintf(),  and  llrintl()
    
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