trouble with parameters

[ZGalhardo]

I am writing a program that will take command-line arguments and convert them to morse code.
What I want to do is, instead of having each case of the switch statement generate the sequence of beeps, having one function that I'll just pass the array of characters with the morse code to. This function will generate the beep sequence. I cannot seem to successfully accomplish this. I keep getting errors whenever I try to pass the array to the beep_sequence function. Can anyone help me out?

#include <iostream>
#include <windows.h>
#include <string>

using namespace std;

const int PAUSE_DURATION = 80; 
const int FREQUENCY = 300;
const int BEEP_DOT = 80;
const int BEEP_DASH = 300;

const string morse_code_alphabet[] = 
{ 
	".-", //A
	"-...", //B
	"-.-.", //C
	"-..", //D
	".", //E
	"..-.",//F
	"--.", //G
	"....", //H
	"..",//I 
	".---",//J
	"-.-",//K
	".-..",//L
	"--", //M
	"-.",//N
	"---",//O
	".--.",//P
	"--.-",//Q
	".-.",//R
	"...",//S
	"-",//T
	"..-",//U
	"...-",//V
	".--",//W
	"-..-",//X
	"-.--",//Y
	"--.." //Z
};

/*
int beep_sequence( char* a_code )
{	
	int idx;
	for ( idx = 0; idx < 3; ++idx ) 
	{
		if ( a_code[ idx ] == '.')
		{
			Beep( FREQUENCY, BEEP_DOT );
		}
		else
		{
			Beep( FREQUENCY, BEEP_DASH );
		}
	}
return 0;
}*/

void process_one_word( char* pchar )
{										 
	int idx;
	while ( *pchar ) 
	{	
		switch( *pchar )
		{
		case 'a':
			{

				char a_code[] = { '.', '-' };
				for ( idx = 0; idx < 2; ++idx ) 
				{
					if ( a_code[ idx ] == '.')
					{
						Beep( FREQUENCY, BEEP_DOT );
					}
					else
					{
						Beep( FREQUENCY, BEEP_DASH );
					}
					cout << a_code[ idx ];
				}
				break;
			}
		case 'b':
			{
				char b_code[] = { '-', '.', '.', '.' };
				for ( idx = 0; idx < 4; ++idx ) 
				{
					if ( b_code[ idx ] == '.')
					{
						Beep( FREQUENCY, BEEP_DOT );
					}
					else
					{
						Beep( FREQUENCY, BEEP_DASH );
					}
				}
				cout << morse_code_alphabet[ 1 ];
				break;
			}
		case 'c':
			{
				char c_code[] = { '-', '.', '-', '.' };
				for ( idx = 0; idx < 4; ++idx ) 
				{
					if ( c_code[ idx ] == '.')
					{
						Beep( FREQUENCY, BEEP_DOT );
					}
					else
					{
						Beep( FREQUENCY, BEEP_DASH );
					}
				}
				cout << morse_code_alphabet[ 2 ];
				break;
			}
		}
		cout << ' ';
		// let's process one character: 
		//cout << *pchar << ' ';
		//int duration = calculate_duration( *pchar );   // calculate_duration(...)
		//Beep( frequency, duration );
		++pchar;
	}
	Sleep( PAUSE_DURATION );
}

int main( int argc, char* argv[] )
{    
	int idx;
	for ( idx = 1; idx < argc; ++idx ) 
	{
		process_one_word( argv[ idx ] );
	}
	return 0;
}

[guestgulkan]

Stupid forum just went off line.
Thought it would take too many questions and answers - so I just fiddled with your code a bit:

#include <iostream>
#include <windows.h>
#include <string>
using namespace std;

const int PAUSE_DURATION = 80; 
const int FREQUENCY = 300;
const int BEEP_DOT = 80;
const int BEEP_DASH = 300;

const string morse_code_alpha[ ] = 
{ 
    ".-", //A
    "-...", //B
    "-.-.", //C
    "-..", //D
    ".", //E
    "..-.",//F
    "--.", //G
    "....", //H
    "..",//I 
    ".---",//J
    "-.-",//K
    ".-..",//L
    "--", //M
    "-.",//N
    "---",//O
    ".--.",//P
    "--.-",//Q
    ".-.",//R
    "...",//S
    "-",//T
    "..-",//U
    "...-",//V
    ".--",//W
    "-..-",//X
    "-.--",//Y
    "--.." //Z
};

const string morse_code_numeric[ ] = 
{
    "-----",//0
    ".----",//1
    "..---",//2
    "...--",//3
    "....-",//4
    ".....",//4
    "-....",//6
    "--...",//7
    "---..",//0
    "----.",//9 
};


void beep_sequence(string letter)
{	
	int idx;
	for ( idx = 0; idx < letter.length(); ++idx ) 
	{
		if ( letter[ idx ] == '.')
		{
			Beep( FREQUENCY, BEEP_DOT );
		}
		else
		{
			Beep( FREQUENCY, BEEP_DASH );
		}
	}
}

void process_one_word( char* pchar )
{
	while ( *pchar ) 
	{	
		
        if(isalpha(*pchar) )
        {
            beep_sequence( morse_code_alpha [toupper (*pchar) - 'A'] );
        }
        else if (isdigit(*pchar))
        {
           beep_sequence( morse_code_numeric [ *pchar - '0' ] );
        }
        
        cout << *pchar;
        
		++pchar;
	}
	Sleep( PAUSE_DURATION );
}

int main( int argc, char* argv[] )
{    
	int idx;
	for ( idx = 1; idx < argc; ++idx ) 
	{
		cout << endl;
        process_one_word( argv[ idx ] );
	}
	return 0;
}

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[ZGalhardo]

Thanks, but I'd prefer getting help with individual questions. This is my final project. I am looking at your code though.