Fix bugs on 'unsigned char' platforms.

[novacoin.git] / src / util.cpp

diff --git a/src/util.cpp b/src/util.cpp
index 19e48d3..9f2de34 100644 (file)
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -425,7 +425,7 @@ bool ParseMoney(const char* pszIn, int64& nRet)
 }
 
 
-static char phexdigit[256] =
+static signed char phexdigit[256] =
 { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
   -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
   -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
@@ -461,12 +461,12 @@ vector<unsigned char> ParseHex(const char* psz)
     {
         while (isspace(*psz))
             psz++;
-        char c = phexdigit[(unsigned char)*psz++];
-        if (c == (char)-1)
+        signed char c = phexdigit[(unsigned char)*psz++];
+        if (c == (signed char)-1)
             break;
         unsigned char n = (c << 4);
         c = phexdigit[(unsigned char)*psz++];
-        if (c == (char)-1)
+        if (c == (signed char)-1)
             break;
         n |= c;
         vch.push_back(n);