X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fbignum.h;h=9962b78372f5804c6f7dc9e012a966f512bd9c18;hb=3374c3ef094b328e6c6957fdaf5a9abff0c53a33;hp=135eade6792ed77a82532001bdd2952fe9b90a78;hpb=26ce92b3526430d4a40b2faccef4facb966d6a0a;p=novacoin.git

diff --git a/src/bignum.h b/src/bignum.h
index 135eade..9962b78 100644
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// 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.
 #ifndef BITCOIN_BIGNUM_H
@@ -11,6 +11,7 @@
 
 #include "util.h"
 
+/** Errors thrown by the bignum class */
 class bignum_error : public std::runtime_error
 {
 public:
@@ -18,7 +19,7 @@ public:
 };
 
 
-
+/** RAII encapsulated BN_CTX (OpenSSL bignum context) */
 class CAutoBN_CTX
 {
 protected:
@@ -46,7 +47,7 @@ public:
 };
 
 
-
+/** C++ wrapper for BIGNUM (OpenSSl bignum) */
 class CBigNum : public BIGNUM
 {
 public:
@@ -243,7 +244,7 @@ public:
     std::vector<unsigned char> getvch() const
     {
         unsigned int nSize = BN_bn2mpi(this, NULL);
-        if (nSize < 4)
+        if (nSize <= 4)
             return std::vector<unsigned char>();
         std::vector<unsigned char> vch(nSize);
         BN_bn2mpi(this, &vch[0]);
@@ -300,7 +301,7 @@ public:
         while (isxdigit(*psz))
         {
             *this <<= 4;
-            int n = phexdigit[*psz++];
+            int n = phexdigit[(unsigned char)*psz++];
             *this += n;
         }
         if (fNegative)