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authorPeter Breitenlohner <peb@mppmu.mpg.de>2014-06-18 11:12:01 +0000
committerPeter Breitenlohner <peb@mppmu.mpg.de>2014-06-18 11:12:01 +0000
commit0c2f0333a4e539325da80cdf3fb182cd17134665 (patch)
treede5daa66b5595292a33c25110aa58ff8bff75543 /Build/source/libs/gmp/gmp-6.0.0/mpf/int_p.c
parentdb612d5045ef55da386a2c3350d4811d1da1a858 (diff)
Add libs/gmp and libs/mpfr in preparation for MetaPost 2.0
git-svn-id: svn://tug.org/texlive/trunk@34274 c570f23f-e606-0410-a88d-b1316a301751
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.c59
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;
+}