diff options
Diffstat (limited to 'mpfr.texi')
| -rw-r--r-- | mpfr.texi | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -1387,6 +1387,21 @@ in binary) in 2-bit precision, though @code{round(4.5)} is equal to 5 and 5 (101 in binary) is rounded to 6 (110 in binary) in 2-bit precision. @end deftypefun +@deftypefun int mpfr_rint_ceil (mpfr_t @var{rop}, mpfr_t @var{op}, mp_rnd_t @var{rnd}) +@deftypefunx int mpfr_rint_floor (mpfr_t @var{rop}, mpfr_t @var{op}, mp_rnd_t @var{rnd}) +@deftypefunx int mpfr_rint_round (mpfr_t @var{rop}, mpfr_t @var{op}, mp_rnd_t @var{rnd}) +@deftypefunx int mpfr_rint_trunc (mpfr_t @var{rop}, mpfr_t @var{op}, mp_rnd_t @var{rnd}) +Set @var{rop} to @var{op} rounded to an integer. +@code{mpfr_rint_ceil} rounds to the next higher or equal integer, +@code{mpfr_rint_floor} to the next lower or equal integer, +@code{mpfr_rint_round} to the nearest integer, rounding halfway cases away +from zero, and @code{mpfr_rint_trunc} to the next integer towards zero. +If the result is not representable, it is rounded in the direction @var{rnd}. +The returned value is the ternary value associated with the considered +round-to-integer function (regarded in the same way as any other +mathematical function). +@end deftypefun + @deftypefun int mpfr_frac (mpfr_t @var{rop}, mpfr_t @var{op}, mp_rnd_t @var{rnd}) Set @var{rop} to the fractional part of @var{op}, having the same sign as @var{op}, rounded in the direction @var{rnd} (unlike in @code{mpfr_rint}, |