**diff options**

author | Szabolcs Nagy <nsz@port70.net> | 2013-09-03 03:27:02 +0000 |
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committer | Szabolcs Nagy <nsz@port70.net> | 2013-09-05 11:30:07 +0000 |

commit | d1a2ead878c27ac4ec600740320f8b76e1f961e9 (patch) | |

tree | 4da00576cf5df93d9170bdf76a26d9c2c96d3978 /src/math/remainderf.c | |

parent | 98be442ee8a2b8b7e0802b604e384d5a2c43282e (diff) | |

download | musl-d1a2ead878c27ac4ec600740320f8b76e1f961e9.tar.gz |

math: rewrite rounding functions (ceil, floor, trunc, round, rint)

* faster, smaller, cleaner implementation than the bit hacks of fdlibm
* use arithmetics like y=(double)(x+0x1p52)-0x1p52, which is an integer
neighbor of x in all rounding modes (0<=x<0x1p52) and only use bithacks
when that's faster and smaller (for float it usually is)
* the code assumes standard excess precision handling for casts
* long double code supports both ld80 and ld128
* nearbyint is not changed (it is a wrapper around rint)

Diffstat (limited to 'src/math/remainderf.c')

0 files changed, 0 insertions, 0 deletions