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ARF_RND_NEAR should now work everywhere (not tested for div, sqrt, rsqrt, root)

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Fredrik Johansson 2016-04-28 01:46:50 +02:00
parent 6815df6eca
commit 6e48b12f37
1 changed files with 3 additions and 11 deletions
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14
doc/source/arf.rst
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@ -94,10 +94,8 @@ Types, macros and constants
.. macro:: ARF_RND_NEAR
Specifies that the result of an operation should be rounded to the
nearest representable number, rounding to an odd mantissa if there is a tie
between two values. **Warning**: this rounding mode is currently
not implemented (except for a few conversions functions where this
stated explicitly).
nearest representable number, rounding to even if there is a tie
between two values.
.. macro:: ARF_PREC_EXACT
@ -227,9 +225,6 @@ Assignment, rounding and conversions
Sets *y* to *x*, rounded to *prec* bits in the direction
specified by *rnd*.
Warning: :func:`arf_set_round` supports rounding to nearest
with *ARF_RND_NEAR*, but the other methods currently do not.
.. function:: void arf_set_si_2exp_si(arf_t y, slong m, slong e)
.. function:: void arf_set_ui_2exp_si(arf_t y, ulong m, slong e)
@ -254,8 +249,7 @@ Assignment, rounding and conversions
.. function:: double arf_get_d(const arf_t x, arf_rnd_t rnd)
Returns *x* rounded to a double in the direction specified by *rnd*.
This method supports rounding to nearest with *ARF_RND_NEAR*.
It also rounds correctly when overflowing or underflowing
This method rounds correctly when overflowing or underflowing
the double exponent range (this was not the case in an earlier version).
.. function:: void arf_get_fmpr(fmpr_t y, const arf_t x)
@ -509,7 +503,6 @@ Addition and multiplication
Sets `y = -x`, rounded to *prec* bits in the direction specified by *rnd*,
returning nonzero iff the operation is inexact.
This method supports *ARF_RND_NEAR*.
.. function:: void arf_mul_2exp_si(arf_t y, const arf_t x, slong e)
@ -529,7 +522,6 @@ Addition and multiplication
Sets `z = x \times y`, rounded to *prec* bits in the direction specified by *rnd*,
returning nonzero iff the operation is inexact.
These methods support *ARF_RND_NEAR*.
.. function:: int arf_add(arf_t z, const arf_t x, const arf_t y, slong prec, arf_rnd_t rnd)