intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 27 insertions, 0 deletions

diff --git a/util/string/cast.py b/util/string/cast.py
new file mode 100644
index 0000000000..4787f6ef44
--- /dev/null
+++ b/util/string/cast.py
@@ -0,0 +1,27 @@
+print 'static const ui8 SAFE_LENS[4][15] = {'
+
+
+def nb(n, b):
+    if n == 0:
+        return [0]
+
+    digits = []
+
+    while n:
+        digits.append(int(n % b))
+        n /= b
+
+    return digits[::-1]
+
+
+for p in (1, 2, 4, 8):
+
+    def it1():
+        for base in range(2, 17):
+            m = 2 ** (8 * p) - 1
+
+            yield len(nb(m, base)) - 1
+
+    print '     {0, 0, ' + ', '.join(str(x) for x in it1()) + '},'
+
+print '};'