Re: im facing problem with fread()??

Rajshekhar <rajshekhar3@xxxxxxxxx> wrote:

> #include<stdio.h>

The prototype for exit() is in stdlib.h, which you forgot to include.

> int main()
> {
> FILE *fp1;
> int buf[5];
> int num,i;

> fp1=fopen("triangle.txt","r");

> num=fread(buf,sizeof(int),5,fp1);

Consider what you are doing here. You are asking for the first sizeof
int * 5 bytes of the file (probably 20); if the file contains 6 4 4,
buf[0] will contain four bytes that correspond to the internal
representations of '6', ' ', and '4'. As already noted, you'd be much
better off reading the contents of this file using fgets() and using
strtol() and friends to get your integers.

> printf("num of elements read =%d\n",num);

> for(i=0;i<5;i++)

As a side note, if you know you read num bytes from the file, why not
iterate num times through buf?

> printf("%d\n",buf[i]);
> return 0;
> }

--
Christopher Benson-Manica | I *should* know what I'm talking about - if I
ataru(at)cyberspace.org | don't, I need to know. Flames welcome.
.

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