Read Structures Stored in a Text File using the function fscanf() - C File

Description

Read Structures Stored in a Text File using the function fscanf()

Demo Code

#include <stdio.h>

int main(){//www  . j ava  2 s  .  com
     int k = 0, m = 0;
     FILE *fptr;
     struct biodata{
          char name[15];
          int rollno;
          int age;
          float weight;
     };
     struct biodata sa;
     fptr = fopen("C:\\Code\\data.dat", "r");
     if (fptr != NULL) {
          printf("File data.dat is opened successfully.\n");
          m = fscanf(fptr, "%s %d %d %f", sa.name,&sa.rollno,&sa.age,&sa.weight);
        
          while(m != EOF){
               printf("Name: %s, Roll no: %d, Age: %d, Weight: %.1f\n",sa.name, sa.rollno,sa.age, sa.weight);
               m = fscanf(fptr, "%s %d %d %f", sa.name,&sa.rollno,&sa.age,&sa.weight);
          }
        
          k = fclose(fptr);
          if(k == -1)
              puts("File-closing failed");
          if(k == 0)
             puts("File is closed successfully.");
     }
     else
         puts("File-opening failed");
     return(0);
}

Result

• Previous
• Next

Related Tutorials

• Fgets( ) function can limit the number of characters read and thus prevent array overruns.
• Write to a Text File in Interactive Mode using the function fputs()
• Write to a Text File in Batch Mode using the function fputs()
• Read Integers Stored in a Text File using the function fscanf()
• Write Structures to a Text File using the function fprintf()