Shulou(Shulou.com)06/03 Report--

Project name large Calculator

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The bottom layer of large number calculation uses string object storage to convert integer data into character type for storage operation addition and subtraction; bit by bit addition and subtraction, design mark bit, mark carry and borrow; multiplication and division control the number of cycles on the basis of addition and subtraction to complete the data processing.

# include#include#include#includeusing namespace std;#define INT_64 long long#define UN_INIT 0xcccccccccccccccc// cannot be separated # define MIN_INT 0xffffffffffffffff#define MAX_INT (unsigned) 0x7fffffffffffffffclass BigData {public: BigData (): _ data (0), _ pdata (") {} BigData (INT_64 data): _ data (data) {INT_64 tmp = _ data; char cSymbol ='+' If (tmp

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