Import changeset

1 files changed, 38 insertions, 0 deletions

diff --git a/strings/udiv.c b/strings/udiv.c
new file mode 100644
index 00000000000..07af323a706
--- /dev/null
+++ b/strings/udiv.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+   
+   This 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 the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This 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
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA */
+
+/* Do udiv and urem if machine dosn't have it */
+
+#include <global.h>
+#include <math.h>
+
+unsigned long udiv(long unsigned int a, long unsigned int b)
+{
+  if (a < INT_MAX32 && b < INT_MAX32)
+    return (unsigned long) ((long) a / (long) b);
+  if (!(b & 1))
+    return (unsigned long) ((long) (a >> 1) / (long) (b >> 1));
+
+  return (unsigned long) floor(((double) a / (double) b));
+}
+
+unsigned long urem(long unsigned int a, long unsigned int b)
+{
+  if (a < INT_MAX32 && b < INT_MAX32)
+    return (unsigned long) ((long) a % (long) b);
+  return a-udiv(a,b)*b;
+}