CSV file reader

csv.h

#ifndef _u_csv_h_
#define _u_csv_h_

#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <string>

class CSVRow {
public:
	
	CSVRow(const std::string& fileName, const char separator = ',') :
		separatorChar(separator),
		file(fileName) {}
	
	std::size_t size() const { return data.size(); }
	
	// Use: while(row.nextRow()) { int a = row.asInt(0) }
	std::istream& nextRow() { return readNextRow(file); }
	
	// Type conversions
	bool asBool(const int index) {
		return (data[index][0] == 't' || data[index][0] == 'T');
	}
	
	int asInt(const int index) { return stoi(data[index]); }
	float asFloat(const int index) { return stof(data[index]); }
	double asDouble(const int index) { return stod(data[index]); }
	std::string asString(const int index) { return data[index]; }
	
private:
	
	std::istream& readNextRow(std::istream& str) {
		
		std::string line;
		do {
			std::getline(str, line);
		} while (line[0] == '#');
		
		std::stringstream lineStream(line);
		std::string cell;
		
		data.clear();
		
		while(std::getline(lineStream, cell, separatorChar)) {
			data.push_back(cell);
		}
		
		return str;
	}
	
	const char separatorChar;
	std::vector<std::string> data;
	std::ifstream file;
};

#endif

/*

int main()
{
	CSVRow row("test.csv", ';');
	while(row.nextRow()) {
		std::cout << row.asFloat(0) << " : " << row.asBool(1) << " : " << row.asString(2).length() << std::endl;
	}
}

*/

Line started with # in CSV file means comment.