1 files changed, 82 insertions, 0 deletions
diff --git a/src/uint256.cpp b/src/uint256.cpp
new file mode 100644
index 000000000..f22ddcd1e
--- /dev/null
+++ b/src/uint256.cpp
@@ -0,0 +1,82 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2015 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "uint256.h"
+
+#include "utilstrencodings.h"
+
+#include <stdio.h>
+#include <string.h>
+
+template <unsigned int BITS>
+base_blob<BITS>::base_blob(const std::vector<unsigned char>& vch)
+{
+    assert(vch.size() == sizeof(data));
+    memcpy(data, &vch[0], sizeof(data));
+}
+
+template <unsigned int BITS>
+std::string base_blob<BITS>::GetHex() const
+{
+    char psz[sizeof(data) * 2 + 1];
+    for (unsigned int i = 0; i < sizeof(data); i++)
+        sprintf(psz + i * 2, "%02x", data[sizeof(data) - i - 1]);
+    return std::string(psz, psz + sizeof(data) * 2);
+}
+
+template <unsigned int BITS>
+void base_blob<BITS>::SetHex(const char* psz)
+{
+    memset(data, 0, sizeof(data));
+
+    // skip leading spaces
+    while (isspace(*psz))
+        psz++;
+
+    // skip 0x
+    if (psz[0] == '0' && tolower(psz[1]) == 'x')
+        psz += 2;
+
+    // hex string to uint
+    const char* pbegin = psz;
+    while (::HexDigit(*psz) != -1)
+        psz++;
+    psz--;
+    unsigned char* p1 = (unsigned char*)data;
+    unsigned char* pend = p1 + WIDTH;
+    while (psz >= pbegin && p1 < pend) {
+        *p1 = ::HexDigit(*psz--);
+        if (psz >= pbegin) {
+            *p1 |= ((unsigned char)::HexDigit(*psz--) << 4);
+            p1++;
+        }
+    }
+}
+
+template <unsigned int BITS>
+void base_blob<BITS>::SetHex(const std::string& str)
+{
+    SetHex(str.c_str());
+}
+
+template <unsigned int BITS>
+std::string base_blob<BITS>::ToString() const
+{
+    return (GetHex());
+}
+
+// Explicit instantiations for base_blob<160>
+template base_blob<160>::base_blob(const std::vector<unsigned char>&);
+template std::string base_blob<160>::GetHex() const;
+template std::string base_blob<160>::ToString() const;
+template void base_blob<160>::SetHex(const char*);
+template void base_blob<160>::SetHex(const std::string&);
+
+// Explicit instantiations for base_blob<256>
+template base_blob<256>::base_blob(const std::vector<unsigned char>&);
+template std::string base_blob<256>::GetHex() const;
+template std::string base_blob<256>::ToString() const;
+template void base_blob<256>::SetHex(const char*);
+template void base_blob<256>::SetHex(const std::string&);