Initial Vexta Core v0.1.0 release

src/uint256.cpp

@@ -0,0 +1,85 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2020 The Bitcoin Core developers
+// Copyright (c) 2014-2020 The DigiByte 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 <util/strencodings.h>
+
+#include <string.h>
+
+template <unsigned int BITS>
+base_blob<BITS>::base_blob(const std::vector<unsigned char>& vch)
+{
+    assert(vch.size() == sizeof(m_data));
+    memcpy(m_data, vch.data(), sizeof(m_data));
+}
+
+template <unsigned int BITS>
+std::string base_blob<BITS>::GetHex() const
+{
+    uint8_t m_data_rev[WIDTH];
+    for (int i = 0; i < WIDTH; ++i) {
+        m_data_rev[i] = m_data[WIDTH - 1 - i];
+    }
+    return HexStr(m_data_rev);
+}
+
+template <unsigned int BITS>
+void base_blob<BITS>::SetHex(const char* psz)
+{
+    memset(m_data, 0, sizeof(m_data));
+
+    // skip leading spaces
+    while (IsSpace(*psz))
+        psz++;
+
+    // skip 0x
+    if (psz[0] == '0' && ToLower(psz[1]) == 'x')
+        psz += 2;
+
+    // hex string to uint
+    size_t digits = 0;
+    while (::HexDigit(psz[digits]) != -1)
+        digits++;
+    unsigned char* p1 = (unsigned char*)m_data;
+    unsigned char* pend = p1 + WIDTH;
+    while (digits > 0 && p1 < pend) {
+        *p1 = ::HexDigit(psz[--digits]);
+        if (digits > 0) {
+            *p1 |= ((unsigned char)::HexDigit(psz[--digits]) << 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&);
+
+const uint256 uint256::ZERO(0);
+const uint256 uint256::ONE(1);