Merge #840: Remove the min(max( construction for the ct_exponent argu…

…ment

edfa40e Remove the min(max( construction for the ct_exponent argument (Steven Roose)

Pull request description:

  As per @dgpv's suggestion here: #834 (comment)

  @dgpv could you review?

Tree-SHA512: 6c91a0a86a593f22ff42fb617aa96aeb97e2e5225e2b5b6980aa470f45ee613dab53de49dbbae20aecf7a4bf21cc005839be770917d55cfb2c9afd821c2d0231

src/blind.cpp

@@ -178,7 +178,7 @@ bool GenerateRangeproof(std::vector<unsigned char>& rangeproof, const std::vecto
     memcpy(asset_message+32, asset_blindptrs[asset_blindptrs.size()-1], 32);
 
     // Sign rangeproof
-    int ct_exponent = std::min(std::max((int)gArgs.GetArg("-ct_exponent", 0), -1), 18);
+    int ct_exponent = (int)gArgs.GetArg("-ct_exponent", 0);
     int ct_bits = (int)gArgs.GetArg("-ct_bits", 52);
     // If min_value is 0, scriptPubKey must be unspendable
     uint64_t min_value = scriptPubKey.IsUnspendable() ? 0 : 1;