C++ (Cpp) asset_object::amount Examples

Example #1

File: db_market.cpp Project: techsharesteam/techshares

asset database::calculate_market_fee( const asset_object& trade_asset, const asset& trade_amount )
{
   assert( trade_asset.id == trade_amount.asset_id );

   if( !trade_asset.charges_market_fees() )
      return trade_asset.amount(0);
   if( trade_asset.options.market_fee_percent == 0 )
      return trade_asset.amount(0);

   fc::uint128 a(trade_amount.amount.value);
   a *= trade_asset.options.market_fee_percent;
   a /= GRAPHENE_100_PERCENT;
   asset percent_fee = trade_asset.amount(a.to_uint64());

   if( percent_fee.amount > trade_asset.options.max_market_fee )
      percent_fee.amount = trade_asset.options.max_market_fee;

   return percent_fee;
}