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truncf(3)

NAME

     trunc, truncf -- nearest integral value with magnitude less than or equal
     to |x|

LIBRARY

     Math Library (libm, -lm)

SYNOPSIS

     #include <math.h>

     double
     trunc(double x);

     float
     truncf(float x);

DESCRIPTION

     The trunc() and truncf() functions return the nearest integral value with
     magnitude less than or equal to |x|.  They are equivalent to rint() and
     rintf(), respectively, in the FE_TOWARDZERO rounding mode.

SEE ALSO

     ceil(3), fesetround(3), floor(3), math(3), nextafter(3), rint(3),
     round(3)

STANDARDS

     The trunc() and truncf() functions conform to ISO/IEC 9899:1999
     (``ISO C99'').

HISTORY

     These routines first appeared in FreeBSD 5.3.

FreeBSD 5.4			 June 20, 2004			   FreeBSD 5.4

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