Integer I/O : How to use getw( ) Function in C
| Previous | Home | Next |
The gettw() function is used to read the integer from file.
int getw(FILE *fp1);
This function return the integer value from the file associated with pointer fp1. it return the next integer from the input files on success and EOF on error.
/** program to understand the use of getw( ) function */
#include<stdio.h>
void main()
{
FILE *fp1;
int a;
fp1=fopen("rajesh.dat","rb");
while((a=getw(fp1)!=EOF)) //Read integer form file
printf("%d\t",a);
fclose(fp1);
};
Output:This program read the integer from the file name "rajesh.dat"
1
2
3
4
5
6
7
8
9
10
| Previous | Home | Next |