Program is Closing

This is a discussion on Program is Closing within the C Programming forums, part of the General Programming Boards category; Hello guys I need help on this program because everytime the number of students reaches 7+, the program is having ...

  1. #1
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    Program is Closing

    Hello guys I need help on this program because everytime the number of students reaches 7+, the program is having a problem and starts closing..

    Output of Program
    Code:
    Name: First Uno
    Age: 1
    Sex: Male
    
    Name: Second Dos
    Age: 2
    Sex: Male
    
    Name: Third Tres
    Age: 3
    Sex: Male
    
    Name: Fourth Quatro
    Age: 4
    Sex: Male
    
    Name: Fifth Sinco
    Age: 5
    Sex: Male
    
    Name: Sixth Sais
    Age: 6
    Sex: Male
    
    Name: Seventh Siete
    Age: 7
    Sex: Male
    
    Number of Students: 7
    
    Enter Your First Name:
    Program.exe has stopped working


    Here's my code
    Code:
    #include <stdio.h>
    #include <conio.h>
    #include <string.h>
    #include <windows.h>
    #include <windowsx.h>
     
    typedef struct {      //declare a structure
       char fname[30];    //for each student record
       char lname[30];
       int age;
       char sex[30];
    }students;            
     
    int main(void) {
       FILE *fpIn;
       int i,studnumber,b;
       char buffer[80];
       students stud[4];   //make an array of student records
     
       fpIn=fopen("names.txt","r+");
       if(!fpIn) {
          printf("Error opening file!\n");
          return 1;
       }
       i=0;
       while(fgets(buffer, sizeof(buffer), fpIn))
       {
          sscanf(buffer, "%s %[^,],%d,%s",stud[i].fname,stud[i].lname,&stud[i].age,&stud[i].sex);
          printf("Name: %s %s \nAge: %d \nSex: %s\n\n",stud[i].fname,stud[i].lname,stud[i].age,stud[i].sex);
          ++i;
       }
       studnumber=i;
     
       fclose(fpIn);
       printf("\nNumber of Students: %d \n",studnumber);
       
       fpIn=fopen("names.txt","a"); 
       if(!fpIn){
                 printf("Error on opening file!\n");
                 return 1;
       }         
       printf("\nEnter Your First Name: ");
       gets(stud[i].fname);
       printf("Enter Your Last Name: ");
       gets(stud[i].lname);
       printf("Enter Your Gender: ");
       gets(stud[i].sex);
       printf("Enter Your Age: ");
       scanf("%d",&stud[i].age);
       printf("Name: %s %s\nAge: %d\nGender: %s\n",stud[i].fname,stud[i].lname,stud[i].age,stud[i].sex);
       fprintf(fpIn,"%s %s,%d,%s\n",stud[i].fname,stud[i].lname,stud[i].age,stud[i].sex);
       fclose(fpIn);
    getch();
    }
    names.txt
    Code:
    First Uno,1,Male
    Second Dos,2,Male
    Third Tres,3,Male
    Fourth Quatro,4,Male
    Fifth Sinco,5,Male
    Sixth Sais,6,Male
    Seventh Siete,7,Male
    Thank you in advance!

  2. #2
    and the hat of wrongness Salem's Avatar
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    > I need help on this program because everytime the number of students reaches 7+,

    Have you really understood what the 4 means here?
    > students stud[4];
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

  3. #3
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    I dont :<

  4. #4
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    Its working now Thank you ! I changed it to stud[100]

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