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    The following form allows you to view linux man pages.

    Command:

    infnan

    
    
    

    SYNOPSIS

           #include <math.h>
    
           double infnan(int error);
    
           Link with -lm.
    
    
    

    DESCRIPTION

           The infnan() function returns a suitable value for infinity and "not-a-
           number" (NaN) results.  The value of error can be ERANGE  to  represent
           infinity or anything else to represent NaN.  errno is also set.
    
    
    

    RETURN VALUE

           If error is ERANGE (Infinity), HUGE_VAL is returned.
    
           If error is -ERANGE (-Infinity), -HUGE_VAL is returned.
    
           If error is anything else, NAN is returned.
    
    
    

    ERRORS

           EDOM   The value of error is "not-a-number" (NaN).
    
           ERANGE The value of error is positive infinity or negative infinity.
    
    
    

    CONFORMING TO

           4.3BSD.
    
    
    

    NOTES

           This  obsolete  function  was  provided  in libc4 and libc5, but is not
           available in glibc2.
    
    
    

    GNU 1993-06-02 INFNAN(3)

    
    
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