X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fuint256.h;h=c07bce4ea04be5b47e09a8442b966b1405c20f10;hb=d11488abd05cb39a9f481e7c4c35f780197a3d28;hp=5b1ba9f6f7a76511f0baefb1646c4343681c23f2;hpb=882164196e5b1971313493f95a6d027f05e2ec92;p=novacoin.git

diff --git a/src/uint256.h b/src/uint256.h
index 5b1ba9f..c07bce4 100644
--- a/src/uint256.h
+++ b/src/uint256.h
@@ -1,13 +1,14 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_UINT256_H
 #define BITCOIN_UINT256_H
 
 #include "serialize.h"
 
 #include <limits.h>
+#include <stdio.h>
 #include <string>
 #include <vector>
 
@@ -19,8 +20,9 @@ inline int Testuint256AdHoc(std::vector<std::string> vArg);
 
 
 
-// We have to keep a separate base class without constructors
-// so the compiler will let us use it in a union
+/** Base class without constructors for uint256 and uint160.
+ * This makes the compiler let u use it in a union.
+ */
 template<unsigned int BITS>
 class base_uint
 {
@@ -92,13 +94,6 @@ public:
         return *this;
     }
 
-    base_uint& operator&=(uint64 b)
-    {
-        pn[0] &= (unsigned int)b;
-        pn[1] &= (unsigned int)(b >> 32);
-        return *this;
-    }
-
     base_uint& operator|=(uint64 b)
     {
         pn[0] |= (unsigned int)b;
@@ -293,7 +288,7 @@ public:
     std::string GetHex() const
     {
         char psz[sizeof(pn)*2 + 1];
-        for (int i = 0; i < sizeof(pn); i++)
+        for (unsigned int i = 0; i < sizeof(pn); i++)
             sprintf(psz + i*2, "%02x", ((unsigned char*)pn)[sizeof(pn) - i - 1]);
         return std::string(psz, psz + sizeof(pn)*2);
     }
@@ -312,9 +307,9 @@ public:
             psz += 2;
 
         // hex string to uint
-        static char phexdigit[256] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0, 0,0xa,0xb,0xc,0xd,0xe,0xf,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0xa,0xb,0xc,0xd,0xe,0xf,0,0,0,0,0,0,0,0,0 };
+        static unsigned char phexdigit[256] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0, 0,0xa,0xb,0xc,0xd,0xe,0xf,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0xa,0xb,0xc,0xd,0xe,0xf,0,0,0,0,0,0,0,0,0 };
         const char* pbegin = psz;
-        while (phexdigit[*psz] || *psz == '0')
+        while (phexdigit[(unsigned char)*psz] || *psz == '0')
             psz++;
         psz--;
         unsigned char* p1 = (unsigned char*)pn;
@@ -355,6 +350,10 @@ public:
         return sizeof(pn);
     }
 
+    uint64 Get64(int n=0) const
+    {
+        return pn[2*n] | (uint64)pn[2*n+1] << 32;
+    }
 
     unsigned int GetSerializeSize(int nType=0, int nVersion=PROTOCOL_VERSION) const
     {
@@ -396,6 +395,7 @@ typedef base_uint<256> base_uint256;
 // uint160
 //
 
+/** 160-bit unsigned integer */
 class uint160 : public base_uint160
 {
 public:
@@ -510,6 +510,7 @@ inline const uint160 operator-(const uint160& a, const uint160& b)      { return
 // uint256
 //
 
+/** 256-bit unsigned integer */
 class uint256 : public base_uint256
 {
 public: