1 files changed, 17 insertions, 0 deletions
diff --git a/src/hash_method.cc b/src/hash_method.cc
new file mode 100644
index 0000000..1eee04e
--- /dev/null
+++ b/src/hash_method.cc
@@ -0,0 +1,17 @@
+#include "common.hh"
+
+#include "hash_method.hh"
+
+std::string HashMethod::to_string(uint8_t const* data, size_t len) {
+  static const char kChar[] = {
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+    'a', 'b', 'c', 'd', 'e', 'f'
+  };
+  std::string ret;
+  ret.reserve(len * 2);
+  for (size_t i = 0; i < len; ++i) {
+    ret.push_back(kChar[data[i] >> 4]);
+    ret.push_back(kChar[data[i] & 0xf]);
+  }
+  return ret;
+}