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Интерактивная система просмотра системных руководств (man-ов)

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lround (3)
  • lround (3) ( Solaris man: Библиотечные вызовы )
  • >> lround (3) ( FreeBSD man: Библиотечные вызовы )
  • lround (3) ( Русские man: Библиотечные вызовы )
  • lround (3) ( Linux man: Библиотечные вызовы )
  • lround (3) ( POSIX man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    llround
    
     
    llroundf
    
     
    llroundl
    
     
    lround
    
     
    lroundf
    
     
    lroundl
    
     - convert to nearest integral value
    
     
    

    LIBRARY

    Lb libm
    
     
    

    SYNOPSIS

       #include <math.h>
    long long llround (double x);
    long long llroundf (float x);
    long long llroundl (long double x);
    long lround (double x);
    long lroundf (float x);
    long lroundl (long double x);
     

    DESCRIPTION

    The lround ();
    function returns the integer nearest to its argument Fa x , rounding away from zero in halfway cases. If the rounded result is too large to be represented as a Vt long value, an invalid exception is raised and the return value is undefined. Otherwise, if Fa x is not an integer, lround ();
    may raise an inexact exception. When the rounded result is representable as a Vt long , the expression lround (x);
    is equivalent to Po Vt long Pc Ns Fn round x (although the former may be more efficient).

    The llround (,);
    llroundf (,);
    llroundl (,);
    lroundf ();
    and lroundl ();
    functions differ from lround ();
    only in their input and output types.  

    SEE ALSO

    lrint(3), math(3), rint(3), round(3)  

    STANDARDS

    The llround (,);
    llroundf (,);
    llroundl (,);
    lround (,);
    lroundf (,);
    and lroundl ();
    functions conform to St -isoC-99 .  

    HISTORY

    The Vt float and Vt double versions of these routines first appeared in Fx 5.4 . The Vt long double versions appeared in Fx 6.0 .


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    SEE ALSO
    STANDARDS
    HISTORY


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