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Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpf/int_p.c')
-rw-r--r-- | Build/source/libs/gmp/gmp-6.0.0/mpf/int_p.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpf/int_p.c b/Build/source/libs/gmp/gmp-6.0.0/mpf/int_p.c new file mode 100644 index 00000000000..91e62266bef --- /dev/null +++ b/Build/source/libs/gmp/gmp-6.0.0/mpf/int_p.c @@ -0,0 +1,59 @@ +/* mpf_integer_p -- test whether an mpf is an integer */ + +/* +Copyright 2001, 2002 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +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 +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#include "gmp.h" +#include "gmp-impl.h" + + +int +mpf_integer_p (mpf_srcptr f) __GMP_NOTHROW +{ + mp_srcptr ptr; + mp_exp_t exp; + mp_size_t size, frac, i; + + size = SIZ (f); + if (size == 0) + return 1; /* zero is an integer */ + + exp = EXP (f); + if (exp <= 0) + return 0; /* has only fraction limbs */ + + /* any fraction limbs must be zero */ + frac = ABS (size) - exp; + ptr = PTR (f); + for (i = 0; i < frac; i++) + if (ptr[i] != 0) + return 0; + + return 1; +} |