Closing Files Reading File, Files are closed using the fclose function. The feof function is used to test for the end of the file. The functions fgetc, fscanf, and fgets are used to read data from the file. The fscanf function can be used to read different data types from the file.

Data Recovery PRO DATA DOCTOR

Home | Order Online | Downloads | Contact Us | Software Knowledgebase

it | es | pt | fr | de | jp | kr | cn | ru | nl | gr


Closing Files

Files are closed using the fclose function. The syntax is as follows:

fclose(in);

Reading Files

The feof function is used to test for the end of the file. The functions fgetc, fscanf, and fgets are used to read data from the file.

The following example lists the contents of a file on the screen, using fgetc to read the file a character at a time.

#include <stdio.h>
int main()
{

FILE *in;
int key;

if ((in = fopen("tarun.txt", "r")) == NULL)
{

puts("Unable to open the file");
return 0;
}

while (!feof(in))
{
key = fgetc(in);

/* The last character read is the end of file
marker so don't print it */
if (!feof(in))
putchar(key);
}

fclose(in);
return 0;
}

The fscanf function can be used to read different data types from the file as in the following example, providing the data in the file is in the format of the format string used with fscanf.

fscanf(in, "%d/%d/%d", &day, &month, &year);

The fgets function is used to read a number of characters from a file. stdin is the standard input file stream, and the fgets function can be used to control input.

Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi
Data Recovery with & without Programming


Publishers of the Book
Number of Pages
ISBN
Price of the Book


BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)





Buy Data recovery Book

Previous page

page 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20

 
 

page 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37

 
 

page 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54

 
 

page 55 | 56 | 57 | 58 | 59 | 60

Next page

© Copyright 2002-2005 DataDoctor.Biz

Home | Contact us | Downloads | Services | Terms and conditions | Site map

Website Data Recovery | recuperación de Datos | Récupération de données | Datenrettung | Recupero dati | データ復旧 | 데이터 복구 | 数据恢复 | Восстановление данных | De terugwinning van gegevens | Ανάκτηση δεδομένων
Sitemap Site map1 2 3 4 | Spanish1 2 3 | French1 2 3 | German1 2 3 | Italian1 2 3 | Portuguese1 2 3 | Japanese1 2 3 | Korean1 2 3 | Chinese1 2 3 | Russian1 2 3 | Dutch1 2 3 | Greek1 2 3
Data Recovery Book English | Spanish | French | German | Italian | Portuguese | Japanese | Korean | Chinese | Russian | Dutch | Greek