Gestionnaire de fichier en C

#include <string>

#include <fstream>

#include <sstream>

#include <math.h>

#include "file_reader.hh"

int cases;

static int extract_integer(std::string& str)

{

std::stringstream ss;

ss << str;

std::string tmp;

int res;

while(!ss.eof())

{

ss >> tmp;

if(std::stringstream(tmp) >> res)

return res;

}

return -1;

}

std::vector<struct price_soup> read_file(std::string& filename)

{

std::vector<price_soup> samples;

std::ifstream infile;

infile.open(filename);

infile >> cases;

std::string skip;

int options;

int flavours;

size_t price;

int k = 0;

while (infile && k < cases)

{

struct price_soup p_s;

infile >> price;

infile >> flavours;

p_s.price = price;

for(int i = 0 ; i < flavours; ++i)

{

int target;

infile >> skip;

infile >> target;

p_s.flavours.push_back(target);

}

infile >> options;

for(int i = 0 ; i < options; ++i)

{

std::string target;

infile >> target;

p_s.options.push_back(extract_integer(target));

}

samples.push_back(p_s);

k++;

}

infile.close();

return samples;

}

static int get_best_opt(int price,

...