Student info

[SlateHawk]

Hey everyone!
I need some help with this code. I need to create a program that acts as a student information library, where it stores the students' first name, last name, and grade. We are also supposed to be able to view their profiles.
The code is a bit long (and unfinished in the "view student info" section), but please help!

Thanks in advance!

#include <iostream>
#include <cstdlib>
#include <string>
#define NAMESIZE 20

struct Record 
	{
		char firstName[NAMESIZE];
		char lastName[NAMESIZE];
		int	score;
	};

using namespace std;

bool get_valid_word(const string& prompt, string& word, bool (*is_valid)(const string&)=0);
bool get_valid_int(const string& prompt, int& n, bool (*is_valid)(int)=0);

int main()
{
	
	const string prompt_firstName="Please enter the first name: ";
	const string lastName="Please enter the last name: ";
	const string score="Please enter the score: ";
}
	
bool get_valid_word//(const string& prompt, string& word, bool (*is_valid)(const string&)=0) 
{
	string line;
	while(1){
			cout<<prompt<<endl;
			if (getline(cin,line))
			{
				istringstream iss(line); // is equal to: istringstream iss=line; assigns the value stored in line to iss'
				if (iss>>word
						&& is_valid(word))
						{
							return true;
						}
			}
			else{
			cin.clear();
			cin.ignore(numeric_limits<streamsize>::max(),'\n');
			return false;
			}
	}
	return true;
}

bool validWord (const string& word) //valid: bob. invalid: bob is awesome asdfh12345 only grab first word of the line 
{
	if (word.size()>20)
	{
	return false;
	}
	for (string::size_type i=0; i<word.size();i++) //size_type only for string. int for string.
	{
		if (!isalpha(word[i]))
			return false;
	}
	return true;
}
bool validScore (int score)
{
	if (score>100||score<0)
	{
		return false;
	}	//google what is function pointer?
	return true;
}

The problem I receive from the compiler is:

line 26: error: 'bool get_valid_word' redeclared as different kind of symbol
line 15: error: previous declaration of 'bool get_valid_word(const std::string&, std::string&, bool (*)(const std::string&))
line 26: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x
line 28: error: expected primary-expression before 'line'
line 28: error: expected '}' before 'line'
line 29: error: expected unqualified-id before 'while'

I know this program has a lot of errors, but if you could work out only one or two, I'd be very grateful!

[SlateHawk]

Please ignore some of the commented sections. They were notes to myself. :)

[Yanson]

you need to include <sstream>

line 26 you need to uncomment the parameter list

I'm not sure what this is supposed to be bool (*is_valid)(const string&)=0 but it causes a compiler error for me.

[MiiNiPaa]

bool (*is_valid)(const string&)=0It is a function pointer with default value provided.
I would use typedefs or using like:

using validatorPtr = bool (*)(const string&);
//or
typedef bool (*validatorPtr)(const string&);

And use resulting type like:
bool get_valid_word(const string& prompt, string& word, validatorPtr is_valid = nullptr)

[fmehri76]

At line 26 you have missed parentheses. Note: when you put these parentheses, you will find many errors in get_valid_word go and solve them.

[SlateHawk]

Thank you