fix warnings: array subscript is of type 'char' [-Wchar-subscripts]

[novacoin.git] / src / uint256.h

diff --git a/src/uint256.h b/src/uint256.h
index ae26334..07809e4 100644 (file)
--- a/src/uint256.h
+++ b/src/uint256.h
@@ -315,7 +315,7 @@ public:
         // 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 };
         const char* pbegin = psz;
-        while (phexdigit[*psz] || *psz == '0')
+        while (phexdigit[(unsigned char)*psz] || *psz == '0')
             psz++;
         psz--;
         unsigned char* p1 = (unsigned char*)pn;