I can't open a file

[chibona]

#include <iostream>

#include <fstream>

#include <string>



using namespace std;



int area(int alt, int larg){



return alt*larg;

}



void girar(char *output_file, int altura, int largura){



ofstream out(output_file, ios::app);

out<<"Altura:"<<largura<<" Largura:"<<altura<<endl;

out.close();

}



void imprimirRectangulo(int alt, int larg){

int x=larg, x2=larg, x3=larg;

int y=alt;



cout<<"+";

while(x>0)

{ cout<<"--";

x--;

}

cout<<"+"<<endl;

while(y>0)

{ cout<<"|";

while(x2>0)

{ cout<<" ";

x2--;

}

cout<<"|"<<endl;

x2=larg;

y--;

}

cout<<"+";

while(x3>0)

{ cout<<"--";

x3--;

}

cout<<"+"<<endl<<endl;



}





main(int argc, char* argv[]){



int alt, larg;

int res;

int a, b;

char *out_path=argv[2];

string linha, sublinha1, sublinha2;



ifstream in(argv[1]);



while(getline(in, linha, '\n')){



int i=0;



while(i!=2)

{



switch(i)

{ case 0: a=linha.find(":");

b=linha.find(" ");

sublinha1=linha.substr(a+1,b-a);

alt=atoi(sublinha1.c_str());

i++; break;



case 1: a=linha.find("largura:");

sublinha2=linha.substr(a+8, linha.length()-a);

larg=atoi(sublinha2.c_str());

i++;

}

}





res=area(alt, larg);

girar(out_path, alt, larg);



if(alt<10 &&larg<10)

imprimirRectangulo(alt, larg);

else

cout<<"Altura= "<<alt<<", Largura= "<<larg<<" -> Area = "<<res<<endl<<endl;



}



in.close();

}

[Mashed Pwntato]

try to get rid of all that white space and use code /code tags please :) it makes it easier to read