| /* Truncate argument to nearest integral value not larger than the argument. |

| Copyright (C) 1997-2017 Free Software Foundation, Inc. |

| This file is part of the GNU C Library. |

| Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and |

| Jakub Jelinek <jj@ultra.linux.cz>, 1999. |

| |

| The GNU C Library is free software; you can redistribute it and/or |

| modify it under the terms of the GNU Lesser General Public |

| License as published by the Free Software Foundation; either |

| version 2.1 of the License, or (at your option) any later version. |

| |

| The GNU C Library is distributed in the hope that it will be useful, |

| but WITHOUT ANY WARRANTY; without even the implied warranty of |

| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |

| Lesser General Public License for more details. |

| |

| You should have received a copy of the GNU Lesser General Public |

| License along with the GNU C Library; if not, write to the Free |

| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |

| 02111-1307 USA. */ |

| |

| #include "quadmath-imp.h" |

| |

| |

| __float128 |

| truncq (__float128 x) |

| { |

| int32_t j0; |

| uint64_t i0, i1, sx; |

| |

| GET_FLT128_WORDS64 (i0, i1, x); |

| sx = i0 & 0x8000000000000000ULL; |

| j0 = ((i0 >> 48) & 0x7fff) - 0x3fff; |

| if (j0 < 48) |

| { |

| if (j0 < 0) |

| /* The magnitude of the number is < 1 so the result is +-0. */ |

| SET_FLT128_WORDS64 (x, sx, 0); |

| else |

| SET_FLT128_WORDS64 (x, i0 & ~(0x0000ffffffffffffLL >> j0), 0); |

| } |

| else if (j0 > 111) |

| { |

| if (j0 == 0x4000) |

| /* x is inf or NaN. */ |

| return x + x; |

| } |

| else |

| { |

| SET_FLT128_WORDS64 (x, i0, i1 & ~(0xffffffffffffffffULL >> (j0 - 48))); |

| } |

| |

| return x; |

| } |