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Annotation of OpenXM_contrib/gmp/mpfr/neg.c, Revision 1.1

1.1     ! maekawa     1: /* mpfr_neg -- change the sign of a floating-point number
        !             2:
        !             3: Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
        !             4:
        !             5: This file is part of the MPFR Library.
        !             6:
        !             7: The MPFR Library is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU Library General Public License as published by
        !             9: the Free Software Foundation; either version 2 of the License, or (at your
        !            10: option) any later version.
        !            11:
        !            12: The MPFR Library is distributed in the hope that it will be useful, but
        !            13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
        !            15: License for more details.
        !            16:
        !            17: You should have received a copy of the GNU Library General Public License
        !            18: along with the MPFR Library; see the file COPYING.LIB.  If not, write to
        !            19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            20: MA 02111-1307, USA. */
        !            21:
        !            22: #include <stdio.h>
        !            23: #include "gmp.h"
        !            24: #include "gmp-impl.h"
        !            25: #include "mpfr.h"
        !            26:
        !            27: void
        !            28: #if __STDC__
        !            29: mpfr_neg(mpfr_ptr a, mpfr_srcptr b, unsigned char rnd_mode)
        !            30: #else
        !            31: mpfr_neg(a, b, rnd_mode)
        !            32:      mpfr_ptr a;
        !            33:      mpfr_srcptr b;
        !            34:      unsigned char rnd_mode;
        !            35: #endif
        !            36: {
        !            37:   if (a != b) mpfr_set4(a, b, rnd_mode, -SIGN(b));
        !            38:   else CHANGE_SIGN(a);
        !            39:   return;
        !            40: }