C Programming language

Integer I/O : How to use getw( ) Function in C
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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"

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