TanSanC

문자열 검색 실습

주어진 문자열 "Hello World"에 있는 문자를 검색한다.

입력된 문자 x 가 주어진 문자열 내에 존재한다면

x 가 존재합니다.

입력된 문자 x 가 주어진 문자열 내에 존재하지 않는다면

x 가 존재하지 않습니다.

#include <stdio.h>

#include <iostream>

using namespace std;

int main( )

{

    string object = "Hello World";

    char searchChar;

    int exist = 0;

    cin >> searchChar;

    cout << object.at(0) << endl;

    cout << object.at(1) << endl;

    cout << object.at(2) << endl;

    // .......

    // exist

    // 1        존재O

    // 0        존재X

    if( exist )

    {

        cout << searchChar << "가존재합니다." << endl;

    }

    else

    {

        cout << searchChar << "가존재하지않습니다." << endl;

    }

    return 0;

}

아두이노 & CPP 연동

출처 : http://playground.arduino.cc/Interfacing/CPPWindows#.UxLbvuN_uSo

SerialClass.h

#ifndef SERIALCLASS_H_INCLUDED
#define SERIALCLASS_H_INCLUDED

#define ARDUINO_WAIT_TIME 2000

#include 
#include 
#include 

class Serial
{
    private:
        //Serial comm handler
        HANDLE hSerial;
        //Connection status
        bool connected;
        //Get various information about the connection
        COMSTAT status;
        //Keep track of last error
        DWORD errors;

    public:
        //Initialize Serial communication with the given COM port
        Serial(char *portName);
        //Close the connection
        //NOTA: for some reason you can't connect again before exiting
        //the program and running it again
        ~Serial();
        //Read data in a buffer, if nbChar is greater than the
        //maximum number of bytes available, it will return only the
        //bytes available. The function return -1 when nothing could
        //be read, the number of bytes actually read.
        int ReadData(char *buffer, unsigned int nbChar);
        //Writes data from a buffer through the Serial connection
        //return true on success.
        bool WriteData(char *buffer, unsigned int nbChar);
        //Check if we are actually connected
        bool IsConnected();


};

#endif // SERIALCLASS_H_INCLUDED

#include "SerialClass.h"

Serial::Serial(char *portName)
{
    //We're not yet connected
    this->connected = false;

    //Try to connect to the given port throuh CreateFile
    this->hSerial = CreateFile(portName,
            GENERIC_READ ,
            0,
            NULL,
            OPEN_EXISTING,
            FILE_ATTRIBUTE_NORMAL,
            NULL);

    //Check if the connection was successfull
    if(this->hSerial==INVALID_HANDLE_VALUE)
    {
        //If not success full display an Error
        if(GetLastError()==ERROR_FILE_NOT_FOUND){

            //Print Error if neccessary
            printf("ERROR: Handle was not attached. Reason: %s not available.\n", portName);

        }
        else
        {
            printf("ERROR!!!");
        }
    }
    else
    {
        //If connected we try to set the comm parameters
        DCB dcbSerialParams = {0};

        //Try to get the current
        if (!GetCommState(this->hSerial, &dcbSerialParams))
        {
            //If impossible, show an error
            printf("failed to get current serial parameters!");
        }
        else
        {
            //Define serial connection parameters for the arduino board
            dcbSerialParams.BaudRate=CBR_9600;
            dcbSerialParams.ByteSize=8;
            dcbSerialParams.StopBits=ONESTOPBIT;
            dcbSerialParams.Parity=NOPARITY;

             //Set the parameters and check for their proper application
             if(!SetCommState(hSerial, &dcbSerialParams))
             {
                printf("ALERT: Could not set Serial Port parameters");
             }
             else
             {
                 //If everything went fine we're connected
                 this->connected = true;
                 //We wait 2s as the arduino board will be reseting
                 Sleep(ARDUINO_WAIT_TIME);
             }
        }
    }

}

Serial::~Serial()
{
    //Check if we are connected before trying to disconnect
    if(this->connected)
    {
        //We're no longer connected
        this->connected = false;
        //Close the serial handler
        CloseHandle(this->hSerial);
    }
}

int Serial::ReadData(char *buffer, unsigned int nbChar)
{
    //Number of bytes we'll have read
    DWORD bytesRead;
    //Number of bytes we'll really ask to read
    unsigned int toRead;

    //Use the ClearCommError function to get status info on the Serial port
    ClearCommError(this->hSerial, &this->errors, &this->status);

    //Check if there is something to read
    if(this->status.cbInQue>0)
    {
        //If there is we check if there is enough data to read the required number
        //of characters, if not we'll read only the available characters to prevent
        //locking of the application.
        if(this->status.cbInQue>nbChar)
        {
            toRead = nbChar;
        }
        else
        {
            toRead = this->status.cbInQue;
        }

        //Try to read the require number of chars, and return the number of read bytes on success
        if(ReadFile(this->hSerial, buffer, toRead, &bytesRead, NULL) && bytesRead != 0)
        {
            return bytesRead;
        }

    }

    //If nothing has been read, or that an error was detected return -1
    return -1;

}


bool Serial::WriteData(char *buffer, unsigned int nbChar)
{
    DWORD bytesSend;

    //Try to write the buffer on the Serial port
    if(!WriteFile(this->hSerial, (void *)buffer, nbChar, &bytesSend, 0))
    {
        //In case it don't work get comm error and return false
        ClearCommError(this->hSerial, &this->errors, &this->status);

        return false;
    }
    else
        return true;
}

bool Serial::IsConnected()
{
    //Simply return the connection status
    return this->connected;
}

#include 
#include 
#include "SerialClass.h"	// Library described above
#include 

// application reads from the specified serial port and reports the collected data
int main(int argc, _TCHAR* argv[])
{
	printf("Welcome to the serial test app!\n\n");

	Serial* SP = new Serial("\\\\.\\COM3");    // adjust as needed

	if (SP->IsConnected())
		printf("We're connected");

	char incomingData[256] = "";			// don't forget to pre-allocate memory
	//printf("%s\n",incomingData);
	int dataLength = 256;
	int readResult = 0;
	FILE *f;
	f = fopen("TempData.txt","w");

	while(SP->IsConnected())
	{
		readResult = SP->ReadData(incomingData,dataLength);
		//		printf("Bytes read: (-1 means no data available) %i\n",readResult);

		std::string test(incomingData);

		printf("%s",incomingData);

		char* token = strtok(incomingData, " ");
		while (token!=NULL) {
			fprintf(f,"\t%s",token);
			token = strtok(NULL, " ");
		}
		
		// strtok // token
		test = "";

		Sleep(1000);
	}
	fclose(f);
	return 0;
}