Título: Escritura incorrecta de caracteres en manejo de archivos C++
Publicado por: Abril7 en 13 Septiembre 2017, 23:02 pm
Hola! Tengo el problema de que al pasar una variable para su escritura en un archivo, se pasan otros caracteres en su lugar y no se por que, imprimo la variable antes de usarla y esta correcta pero ya en el archivo se añaden datos que no corresponden y no entiendo por que, ya prove casteando la variable y aun asi no se arregla, ya no se que mas puedo hacer, muchas gracias. LA FUNCION CAPTURAR ES LA DEL PROBLEMA, justo abajo de la generacion del health number, en esa parte al escribir el archivo, gracias. #ifndef PATIENT_H
#define PATIENT_H
class Patient
{
public:
void capture();
void show();
void deleteP();
void searchP();
void edit();
private:
char healthNumber[30];
char name[30];
char ailing[30];
char treatment[30];
};
#endif // PATIENT_H #include <iostream>
#include <fstream>
#include <string.h>
#include <string>
#include "Patient.h"
#include <cstring>
using namespace std;
int main(){
int op;
Patient patient;
int z=1;
cout<<"---------------------------------------PATIENT INFO----------------------------------------"<<endl;
cout<<"PLEASE TYPE EVERYTHING WITH CAPITAL LETTERS, OTHERWISE YOU MAY HAVE PROBLEMS FINDING A FILE"<<endl<<endl;
while(z!=0){
cout<<"What do you want to do?"<<endl;
cout<<"\t 1)Capture"<<endl;
cout<<"\t 2)Show"<<endl;
cout<<"\t 3)Search"<<endl;
cout<<"\t 4)Delete"<<endl;
cout<<"\t 5)Edit"<<endl;
cin>>op;
switch(op)
{
case 1:
patient.capture();
break;
case 2:
patient.show();
break;
case 3:
patient.searchP();
break;
case 4:
patient.deleteP();
break;
case 5:
patient.edit();
break;
default:
cout<<"Your option was invalid, type a valid number."<<endl;
}
}
return 0;
} #include "Patient.h"
#include <iostream>
#include <string>
#include <string.h>
#include <fstream>
using namespace std;
void Patient::capture()
{
int hN,n,a,t;
cout<<"Name: ";
cin.ignore();
cin.getline(name,30);
cout<<"Ailing: ";
cin.getline(ailing,30);
cout<<"Treatmeant: ";
cin.getline(treatment,30);
//--------------HEALTH NUMBER GENERATOR----------------
char *ptr;
ptr = strtok(name," ");
string aux = ptr;
string letter = aux.substr(0,1);
string add = letter;
cout<<"Health Number: ";
while(ptr != NULL)
{
ptr = strtok(NULL, " ");
if(ptr == NULL)break;
string aux = ptr;
letter = aux.substr(0,1);
add = add + letter;
}
char *aux1 = new char[add.length() + 1];
strcpy(aux1, add.c_str());
delete [] aux1;
//-----------------------------------------------------
cout<<add<<endl;
ofstream write;
write.open("Patients.txt",ios::app);
hN = strlen(aux1);
n = strlen(name);
a = strlen(ailing);
t = strlen(treatment);
write.write((char *)&hN,sizeof(hN));
write.write((char *)&aux1,hN);
write.write((char *)&n,sizeof(int));
write.write((char *)&name,n);
write.write((char *)&a,sizeof(int));
write.write((char *)&ailing,a);
write.write((char *)&t,sizeof(int));
write.write((char *)&treatment,t);
write.close();
}
void Patient::show()
{
int hN,n,a,t;
ifstream read;
read.open("Patients.txt", ios::in);
if (!read.good())
{
cout<<"\n\n\tFile not found."<<endl;
}
else
{
while(!read.eof()){
read.read((char *)&hN,sizeof(int));
read.read((char *)&healthNumber,hN);
healthNumber[hN]='\0';
read.read((char *)&n,sizeof(int));
read.read((char *)&name,n);
name[n]='\0';
read.read((char *)&a,sizeof(int));
read.read((char *)&ailing,a);
ailing[a]='\0';
read.read((char *)&t,sizeof(int));
read.read((char *)&treatment,t);
treatment[t]='\0';
if(read.eof()){break;}
cout<<endl;
cout<<"___________________________________"<<endl;
cout<<"Health Number: "<<healthNumber<<endl;
cout<<"Name: "<<name<<endl;
cout<<"Ailing: "<<ailing<<endl;
cout<<"Treatment: "<<treatment<<endl;
cout<<"___________________________________"<<endl;
}read.close();
}
}
void Patient::searchP()
{
int hN,n,a,t;
string id;
ifstream read ("Patients.txt");
bool found = false;
cout<<"Type de health number [ID] that you want to find: ";
cin>>id;
if (!read.good())
{
cout<<"\n\n\tFile not found."<<endl;
}
else
{
while(!read.eof() && found == false){
read.read((char *)&hN,sizeof(int));
read.read((char *)&healthNumber,hN);
healthNumber[hN]='\0';
read.read((char *)&n,sizeof(int));
read.read((char *)&name,n);
name[n]='\0';
read.read((char *)&a,sizeof(int));
read.read((char *)&ailing,a);
ailing[a]='\0';
read.read((char *)&t,sizeof(int));
read.read((char *)&treatment,t);
treatment[t]='\0';
if(healthNumber == id){
cout<<"______________FOUND_______________"<<endl;
cout<<"Health Number: "<<healthNumber<<endl;
cout<<"Name: "<<name<<endl;
cout<<"Ailing: "<<ailing<<endl;
cout<<"Treatment: "<<treatment<<endl;
cout<<"___________________________________"<<endl;
found = true;
}
if(read.eof()){cout<<"/t Health number not found."<<endl; break;}
}
read.close();
}
}
void Patient::deleteP()
{
string word;
cout<<"Type the idProfile that you want to find: "<<endl;
cin>>word;
int hN,n,a,t;
ifstream read;
read.open("User.txt",ios::in);
ofstream aux;
aux.open("temp.txt",ios::out);
bool found = false;
if (!read.good())
{
cout<<"\n\n\tFile not found."<<endl;
}
else
{
while(!read.eof()){
found = false;
hN = strlen(healthNumber);
n = strlen(name);
a = strlen(ailing);
t = strlen(treatment);
read.read((char *)&hN,sizeof(int));
read.read((char *)&healthNumber,hN);
healthNumber[hN]='\0';
read.read((char *)&n,sizeof(int));
read.read((char *)&name,n);
name[n]='\0';
read.read((char *)&a,sizeof(int));
read.read((char *)&ailing,a);
ailing[a]='\0';
read.read((char *)&t,sizeof(int));
read.read((char *)&ailing,t);
treatment[t]='\0';
if(word == name){
cout<<"______________DELETED_______________"<<endl;
cout<<"Health number: "<<healthNumber<<endl;
cout<<"Name: "<<name<<endl;
cout<<"Ailing: "<<ailing<<endl;
cout<<"Treatment: "<<treatment<<endl;
cout<<"___________________________________"<<endl;
found = true;
}
else if(found == false){
if(read.eof()){cout<<"File not found."<<endl; break;}
hN = strlen(healthNumber);
n = strlen(name);
a = strlen(ailing);
t = strlen(treatment);
aux.write((char *)&hN,sizeof(int));
aux.write((char *)&healthNumber,hN);
aux.write((char *)&n,sizeof(int));
aux.write((char *)&name,n);
aux.write((char *)&a,sizeof(int));
aux.write((char *)&ailing,a);
aux.write((char *)&t,sizeof(int));
aux.write((char *)&treatment,t);
}
}
read.close();
aux.close();
remove("User.txt");
rename("temp.txt","User.txt");
}
}
void Patient::edit()
{
string word;
cout<<"Type the idProfile that you want to find: "<<endl;
cin>>word;
int hN,n,a,t;
ifstream read;
read.open("User.txt",ios::in);
ofstream aux;
aux.open("temp.txt",ios::out);
bool found = false;
if (!read.good())
{
cout<<"\n\n\tFile not found."<<endl;
}
else
{
while(!read.eof()){
found = false;
hN = strlen(healthNumber);
n = strlen(name);
a = strlen(ailing);
t = strlen(treatment);
read.read((char *)&hN,sizeof(int));
read.read((char *)&healthNumber,hN);
healthNumber[hN]='\0';
read.read((char *)&n,sizeof(int));
read.read((char *)&name,n);
name[n]='\0';
read.read((char *)&a,sizeof(int));
read.read((char *)&ailing,a);
ailing[a]='\0';
read.read((char *)&t,sizeof(int));
read.read((char *)&ailing,t);
treatment[t]='\0';
if(word == name){
cout<<"______________DELETED_______________"<<endl;
cout<<"Health number: "<<healthNumber<<endl;
cout<<"Name: "<<name<<endl;
cout<<"Ailing: "<<ailing<<endl;
cout<<"Treatment: "<<treatment<<endl;
cout<<"___________________________________"<<endl;
found = true;
}
else if(found == false){
if(read.eof()){cout<<"File not found."<<endl; break;}
hN = strlen(healthNumber);
n = strlen(name);
a = strlen(ailing);
t = strlen(treatment);
aux.write((char *)&hN,sizeof(int));
aux.write((char *)&healthNumber,hN);
aux.write((char *)&n,sizeof(int));
aux.write((char *)&name,n);
aux.write((char *)&a,sizeof(int));
aux.write((char *)&ailing,a);
aux.write((char *)&t,sizeof(int));
aux.write((char *)&treatment,t);
}
}
read.close();
aux.close();
remove("User.txt");
rename("temp.txt","User.txt");
}
}
Título: Re: Escritura incorrecta de caracteres en manejo de archivos C++
Publicado por: ivancea96 en 14 Septiembre 2017, 21:35 pm
write.write((char *)&aux1,hN);
aux1 ya es un char*. Si pones "&aux1" estás consiguiendo la dirección de aux1, un char**. Lo que te escribirá en el archivo será lo que guardaba aux1 (un puntero), binario, y el resto "basura". write(aux1, hN) debería llegar. aux1 es un char*^, así que simplemente escríbelo.
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