Hello, whenever I run this program my .exe crashes and leaves the resulting .dat

Question

Hello, whenever I run this program my .exe crashes and leaves the resulting .dat file empty, this is done in C

#include
#include
#include
#include
int main ()

{

FILE *fp = fopen( "dogs.dat" , "wb" );

Dogs apollo;
strcpy(apollo.colors, "brown");
apollo.ageInHumanYears = "28";
apollo.height = "1.5";
strcpy(apollo.texture, "rough");
fwrite(&apollo,sizeof (Dogs),1,fp);

Dogs athena;
strcpy(athena.colors, "golden");
athena.ageInHumanYears = "35";
athena.height = "1.8";
strcpy(athena.texture, "silky");
fwrite(&athena,sizeof (Dogs),1,fp);

Dogs hercules;
strcpy(hercules.colors, "white");
hercules.ageInHumanYears = "14";
hercules.height = "2";
strcpy(hercules.texture, "furry");
fwrite(&hercules,sizeof (Dogs),1,fp);

Dogs zeus;
strcpy(zeus.colors, "black");
zeus.ageInHumanYears = "42";
zeus.height = "1.4";
strcpy(zeus.texture, "fluffy");
fwrite(&zeus,sizeof (Dogs),1,fp);

Dogs poseidon;
strcpy(poseidon.colors, "gray");
poseidon.ageInHumanYears = "56";
poseidon.height = "2.1";
strcpy(poseidon.texture, "dense");
fwrite(&poseidon,sizeof (Dogs),1,fp);

fclose(fp);

return(0);

}

This is the code for the dogs struct.h file

#ifndef DOGS_H

#define DOGS_H

typedef struct Dogs_struct

{

char name[20]; // Preferably the dog's full name

char colors[30]; // List the color(s) of the dog's fur (or skin if applicable)

int ageInHumanYears;

int height; // Let the number before the decimal equal feet and the number after the decimal equal inches

char texture; // how does their fur feel like: rough, smooth, thick, soft, and son on

} Dogs;

#endif // DOGS_H

Explanation / Answer

/*
Modified c program that open an input
file dogs.dat in write mode for writing
data in binary form.
*/
//include header files
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string>
//include Dogs.h header file
#include "Dogs.h"
int main ()
{
   //Open file for writing in binary mode
   FILE *fp = fopen( "dogs.dat" , "wb" );

   //Create variable of Dogs strcture
   Dogs apollo;
   strcpy(apollo.colors, "brown");
   //Story only the integer type for ageInHumanuYears
   apollo.ageInHumanYears = 28;
   apollo.height = 1.5;
   strcpy(apollo.texture, "rough");
   fwrite(&apollo,sizeof (Dogs),1,fp);

   //Create variable of Dogs strcture
   Dogs athena;
   strcpy(athena.colors, "golden");
   athena.ageInHumanYears = 35;
   athena.height = 1.8;
   strcpy(athena.texture, "silky");
   fwrite(&athena,sizeof (Dogs),1,fp);

   //Create variable of Dogs strcture
   Dogs hercules;
   strcpy(hercules.colors, "white");
   hercules.ageInHumanYears = 14;
   hercules.height = 2;
   strcpy(hercules.texture, "furry");
   fwrite(&hercules,sizeof (Dogs),1,fp);

   //Create variable of Dogs strcture
   Dogs zeus;
   strcpy(zeus.colors, "black");
   zeus.ageInHumanYears = 42;
   zeus.height = 1.4;
   strcpy(zeus.texture, "fluffy");
   fwrite(&zeus,sizeof (Dogs),1,fp);

   //Create variable of Dogs strcture
   Dogs poseidon;
   strcpy(poseidon.colors, "gray");
   poseidon.ageInHumanYears = 56;
   poseidon.height = 2.1;
   strcpy(poseidon.texture, "dense");
   fwrite(&poseidon,sizeof (Dogs),1,fp);

   //Close the file pointer
   fclose(fp);
   getch();
   return(0);
}

-------------------------------------------------------------

//Dogs.h

#ifndef DOGS_H
#define DOGS_H
typedef struct Dogs_struct
{
   char name[20];
   char colors[30];
   int ageInHumanYears;
   int height;
   //declare charaacter array to stroe the texture
   char texture[20];
} Dogs;
#endif // DOGS_H

--------------------------------------------------------

Note : The data written to file dogs.txt and it is not able to read in text form since it is written in binary.

To read the file, has to write a code to read file in binary into the text format.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.