Need help compiling

miamidawgs (42)
I wrote a code for a program that asks the user for a input file and takes the information from the file and sorts it. It then calculates the average and median. it puts all of the stuff in a file called occupations.out. this is my code:

#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
using namespace std;
const int MAX_OCCUPATIONS = 10;


bool openFile(ifstream&);
void sortOccupations(ifstream&);
double calcSalaries(double salary);
void printSalaries( double average, double median);

int main()
{
string input_file, occupations; // input file and occupations
string countries[1]; // input file and country names
double salary[MAX_OCCUPATIONS]; // number of occupations
sort(num_occupations);
ifstream input;

while ( openFile ( input ) )
{
sortOccupations ( input );
}
if (input.fail() )
{
cout << “Input file “ << input_file << “does not exist”;
}
else
calcSalaries ( input );
printSalaries ( input );
return ( 0 );
}

/* openFile: prompts user for input file, 3 tries
Parameters:
input: ifstream object (input file)
Returns: true if input file is successfully opened
*/
bool openFile(ifstream&)
{
string input_file; // the input file used to get the data
int attempts = 0; // number of tries ti open the file

// prompt for input file
cout << “Enter the name of the input file\n”;
cin >> input_file;
input.open( input_file );
attempts++;

while ( input.fail() && attempts < 3 )
{
cout << “Could not open file. Enter the name of the input file\n”;
cin >> input_file;
input.open( input_file );
attempts++;
}
if ( input.fail() )
{
return false;
}
}

/* sortOccupations: sorts the occupations into a table
Pre-conditions:
The input file was opened successfully
Parameters:
input: ifstream object (input file)
Returns: Nothing
*/
void sortOccupations(ifstream&)
{
double salary;
string occupations
int index_of_next_smallest;
for ( int index = 0; index < number_used - 1; index++)
index_of_next_smallest = index_of_smallest(a, index, number_used);
swap_values(a[index], a[index_of_next_smallest]);

//set precision
cout.setf( ios::fixed | ios::showpoint );
cout.precision( 2 );

cout << “Occupations Salary\n”;
cout << “____________________\n”;
cin >> occupations >> salary;
while ( !in.eof() )
{
cout << setw(19) << occupation << “ $” << setw(10) << salary << endl;
cin >> occupation >> salary;
}
cout << endl;
}

/* calcSalaries: calculates the median and the average of the salaries
Pre-conditions:
The input file was opened successfully.
Parameters:
salary: used to calculate average and median
Returns: Average and median of salaries
*/
double calcSalaries(double salary)
{
double salary[MAX_OCCUPATIONS];
double sum;
double average;
double median;
int n, total = 0;

for (int i=0, i < 9, i++)
{
total = total + salary[i];
}
average = total / salary;

if(n%2 == 0)
{
int middle = n / 2;
int middle1 = (n / 2)-1;
median = (salary[middle] + salary[middle1]) / 2;
}
return average, median;

/* printSalaries: Prints out the average and median into occupations.out
Pre-conditions:
Input file was opened succesfully
Parameters:
average: average of salaries
median: median of salaries
Returns: Nothing
*/
void printSalaries( double average, double median )
{
// write to output file
output.open( “occupations.out” );
output << “Average salary: $ ” << average << endl;
output << “Median salary: $ “ << median << endl;
output.close ( );
return(0);
}

It does not compile. I need help please.
Aceix (1118)
Please use code tags and also state you errors.

Aceix.
miamidawgs (42)
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#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
using namespace std;
const int MAX_OCCUPATIONS = 10;


bool openFile(ifstream&);
void sortOccupations(ifstream&);
double calcSalaries(double salary);
void printSalaries( double average, double median); 

int main()
{
	string input_file, occupations;   // input file and occupations
string countries[1];  // input file and country names
	double salary[MAX_OCCUPATIONS];   // number of occupations
	sort(num_occupations);
	ifstream input;
	
while ( openFile ( input ) )
{
	sortOccupations ( input );
}
if (input.fail() )
{
	cout << “Input file “ << input_file << “does not exist”;
}
else
	calcSalaries ( input );
	printSalaries ( input );
return ( 0 );
}

/* openFile: prompts user for input file, 3 tries
   Parameters: 
input: ifstream object (input file)
   Returns: true if input file is successfully opened
*/
bool openFile(ifstream&)
{
	string input_file;  // the input file used to get the data
	int attempts = 0;    // number of tries ti open the file

	// prompt for input file
	cout << “Enter the name of the input file\n”;
	cin >> input_file;
	input.open( input_file );
	attempts++;

	while ( input.fail() && attempts < 3 )
	{
		cout << “Could not open file. Enter the name of the input file\n”;
		cin >> input_file;
		input.open( input_file );
		attempts++;
	}
	if ( input.fail() )
	{
		return false;
	}
}

/* sortOccupations: sorts the occupations into a table
   Pre-conditions:
	The input file was opened successfully
   Parameters:
	input: ifstream object (input file)
   Returns: Nothing
*/
void sortOccupations(ifstream&)
{
	double salary;
	string occupations
int index_of_next_smallest;
for ( int index = 0; index < number_used - 1; index++)
index_of_next_smallest = index_of_smallest(a, index, number_used);
swap_values(a[index], a[index_of_next_smallest]);

//set precision
cout.setf( ios::fixed | ios::showpoint );
cout.precision( 2 );

cout << “Occupations                Salary\n”;
cout << “____________________\n”;
cin >> occupations >> salary;
while ( !in.eof() )
{
	cout << setw(19) << occupation << “     $” << setw(10) << salary << endl;
	cin >> occupation >> salary;
}
cout << endl;
}

/* calcSalaries: calculates the median and the average of the salaries
   Pre-conditions:
	The input file was opened successfully.
   Parameters:
	salary: used to calculate average and median
   Returns: Average and median of salaries
*/
double calcSalaries(double salary)
{
	double salary[MAX_OCCUPATIONS];
double sum;
	double average;
	double median;
	int n, total = 0;
	
	for (int i=0, i < 9, i++)
	{
		total = total + salary[i];
	}
	average = total / salary;

	if(n%2 == 0)
	{
		int middle = n / 2;
		int middle1 = (n / 2)-1;
		median = (salary[middle] + salary[middle1]) / 2;
	}
	return average, median;

/* printSalaries: Prints out the average and median into occupations.out
   Pre-conditions:
	Input file was opened succesfully
   Parameters:
	average: average of salaries
	median: median of salaries
   Returns: Nothing
*/
void printSalaries( double average, double median )
{
// write to output file
output.open( “occupations.out” );
output << “Average salary:  $ ” << average << endl;
output << “Median salary:  $ “ << median << endl;	
	output.close ( );
	return(0);
}

the errors are:

lab5.cpp: In function 'int main()':
lab5.cpp:37: error: cannot convert 'double*' to 'double' for argument '1' to 'double calcSalaries(double)'
lab5.cpp:38: error: cannot convert 'double*' to 'double' for argument '1' to 'void printSalaries(double, double)'
lab5.cpp: In function 'bool openFile(std::ifstream&)':
lab5.cpp:56: error: 'input' was not declared in this scope
lab5.cpp: In function 'void sortOccupations(std::ifstream&)':
lab5.cpp:86: error: 'number_used' was not declared in this scope
lab5.cpp:87: error: 'a' was not declared in this scope
lab5.cpp:87: error: 'index_of_smallest' was not declared in this scope
lab5.cpp:88: error: 'a' was not declared in this scope
lab5.cpp:88: warning: name lookup of 'index' changed
<built-in>:0: warning: matches this 'char* index(const char*, int)' under ISO standard rules
lab5.cpp:86: warning: matches this 'index' under old rules
lab5.cpp:88: error: 'swap_values' was not declared in this scope
lab5.cpp:97: error: 'in' was not declared in this scope
lab5.cpp:99: error: 'occupation' was not declared in this scope
lab5.cpp: In function 'double calcSalaries(double)':
lab5.cpp:115: error: declaration of 'double salary [10]' shadows a parameter
lab5.cpp:119: error: conflicting declaration 'int total'
lab5.cpp:116: error: 'total' has a previous declaration as 'double total'
lab5.cpp:121: error: expected initializer before '<' token
lab5.cpp:125: error: invalid operands of types 'double' and 'double [10]' to binary 'operator/'
lab5.cpp:127: error: expected primary-expression before 'if'
lab5.cpp:127: error: expected ')' before 'if'
lab5.cpp: In function 'void printSalaries(double, double)':
lab5.cpp:146: error: declaration of 'double average' shadows a parameter
lab5.cpp:147: error: declaration of 'double median' shadows a parameter
lab5.cpp:150: error: 'output' was not declared in this scope
lab5.cpp:154: error: return-statement with a value, in function returning 'void'
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