* mpq/abs.c: New file.

1 files changed, 46 insertions, 0 deletions

diff --git a/mpq/abs.c b/mpq/abs.c
new file mode 100644
index 000000000..5d9de7026
--- /dev/null
+++ b/mpq/abs.c
@@ -0,0 +1,46 @@
+/* mpq_abs -- absolute value of a rational.
+
+Copyright (C) 2000 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 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 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 Lesser General Public
+License for more details.
+
+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
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+
+void
+mpq_abs (mpq_ptr dst, mpq_srcptr src)
+{
+  mp_size_t  num_size = src->_mp_num._mp_size;
+  mp_size_t  num_abs_size = ABS (num_size);
+
+  if (dst != src)
+    {
+      mp_size_t  den_size = src->_mp_den._mp_size;
+
+      MPZ_REALLOC (mpq_numref(dst), num_abs_size);
+      MPZ_REALLOC (mpq_denref(dst), den_size);
+
+      MPN_COPY (dst->_mp_num._mp_d, src->_mp_num._mp_d, num_abs_size);
+      MPN_COPY (dst->_mp_den._mp_d, src->_mp_den._mp_d, den_size);
+
+      dst->_mp_den._mp_size = den_size;
+    }
+
+  dst->_mp_num._mp_size = num_abs_size;
+}