Merge branch '0.6.x' of git://gitorious.org/+bitcoin-stable-developers/bitcoin/bitcoi...

[novacoin.git] / src / bignum.h

diff --git a/src/bignum.h b/src/bignum.h
index abcc052..307017b 100644 (file)
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -9,7 +9,7 @@
 #include <vector>
 #include <openssl/bn.h>
 
-#include "util.h"
+#include "util.h" // for uint64
 
 /** Errors thrown by the bignum class */
 class bignum_error : public std::runtime_error
@@ -47,7 +47,7 @@ public:
 };
 
 
-/** C++ wrapper for BIGNUM (OpenSSl bignum) */
+/** C++ wrapper for BIGNUM (OpenSSL bignum) */
 class CBigNum : public BIGNUM
 {
 public:
@@ -117,9 +117,9 @@ public:
     {
         unsigned long n = BN_get_word(this);
         if (!BN_is_negative(this))
-            return (n > std::numeric_limits<int>::max() ? std::numeric_limits<int>::max() : n);
+            return (n > (unsigned long)std::numeric_limits<int>::max() ? std::numeric_limits<int>::max() : n);
         else
-            return (n > std::numeric_limits<int>::max() ? std::numeric_limits<int>::min() : -(int)n);
+            return (n > (unsigned long)std::numeric_limits<int>::max() ? std::numeric_limits<int>::min() : -(int)n);
     }
 
     void setint64(int64 n)
@@ -222,7 +222,7 @@ public:
         if (vch.size() > 4)
             vch[4] &= 0x7f;
         uint256 n = 0;
-        for (int i = 0, j = vch.size()-1; i < sizeof(n) && j >= 4; i++, j--)
+        for (unsigned int i = 0, j = vch.size()-1; i < sizeof(n) && j >= 4; i++, j--)
             ((unsigned char*)&n)[i] = vch[j];
         return n;
     }