version 1.1.1.1, 2000/01/10 15:35:22 |
version 1.1.1.2, 2000/09/09 14:13:11 |
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/* mpf_sub -- Subtract two floats. |
/* mpf_sub -- Subtract two floats. |
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Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc. |
Copyright (C) 1993, 1994, 1995, 1996, 1999, 2000 Free Software Foundation, |
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Inc. |
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This file is part of the GNU MP Library. |
This file is part of the GNU MP Library. |
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The GNU MP Library is free software; you can redistribute it and/or modify |
The GNU MP Library is free software; you can redistribute it and/or modify |
it under the terms of the GNU Library General Public License as published by |
it under the terms of the GNU Lesser General Public License as published by |
the Free Software Foundation; either version 2 of the License, or (at your |
the Free Software Foundation; either version 2.1 of the License, or (at your |
option) any later version. |
option) any later version. |
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The GNU MP Library is distributed in the hope that it will be useful, but |
The GNU MP Library is distributed in the hope that it will be useful, but |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
License for more details. |
License for more details. |
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You should have received a copy of the GNU Library General Public License |
You should have received a copy of the GNU Lesser General Public License |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
MA 02111-1307, USA. */ |
MA 02111-1307, USA. */ |
Line 110 mpf_sub (r, u, v) |
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Line 111 mpf_sub (r, u, v) |
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if (usize == 0) |
if (usize == 0) |
{ |
{ |
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if (vsize > prec) |
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{ |
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vp += vsize - prec; |
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vsize = prec; |
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} |
rsize = vsize; |
rsize = vsize; |
tp = (mp_ptr) vp; |
tp = (mp_ptr) vp; |
negate ^= 1; |
negate ^= 1; |
Line 117 mpf_sub (r, u, v) |
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Line 123 mpf_sub (r, u, v) |
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} |
} |
if (vsize == 0) |
if (vsize == 0) |
{ |
{ |
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if (usize > prec) |
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{ |
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up += usize - prec; |
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usize = prec; |
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} |
rsize = usize; |
rsize = usize; |
tp = (mp_ptr) up; |
tp = (mp_ptr) up; |
goto normalize; |
goto normalize; |
Line 131 mpf_sub (r, u, v) |
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Line 142 mpf_sub (r, u, v) |
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wouldn't have exited unless up[usize - 1] and vp[vsize - 1] |
wouldn't have exited unless up[usize - 1] and vp[vsize - 1] |
were non-equal, this if-statement catches all cases where U |
were non-equal, this if-statement catches all cases where U |
is smaller than V. */ |
is smaller than V. */ |
{ mp_srcptr tp = up; up = vp; vp = tp; } |
MPN_SRCPTR_SWAP (up,usize, vp,vsize); |
{ mp_size_t tsize = usize; usize = vsize; vsize = tsize; } |
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negate ^= 1; |
negate ^= 1; |
/* negating ediff not necessary since it is 0. */ |
/* negating ediff not necessary since it is 0. */ |
} |
} |