Reading values from a file and storing them in an array

[vunwe]

 #include<stdio.h>
int main()
{
int i,j,k,l;
    char in;
    FILE*fp;
    float array[500];
    fp=fopen("input.txt","r");
     if(fp==NULL)
     {
     printf("Error: can't open file.\n");
     }
      else
      {
      printf("File opened successfully.\n");
      }
       do
        {
            in = getc(input);
        printf("%c",in);
       }
       while(in != EOF);
       for(i=0;i<500;i++)
       {
       }
       float max=array[0],min=array[0];
       if (array[i] > max)
        {
          max = array[i];
        }
      else if (array[i] < min)
        {
          min = array[i];
        }

  printf ("Maximum element in an array : %d\n", max);
}

/* I need help storing the 100 values into an array and finding the maximum value from the array*/
[/Code]

[claudiu]

I have writen a code which reads 100 floats numbers from a (100*1)matrix in a data.txt.

No you haven't.

[vunwe]

It does read. 100 values form data.txt,my problem is assigning them into an array

[claudiu]

Your code does not even compile for obvious reasons. Fix it and FIX YOUR INDENTATION, as a first step.

[vunwe]

ive fixed it

[claudiu]

Ok, this is getting somewhere.

A few things to fix:

1) Indentation is still not perfect and could be improved.

2) main() returns 0 at the end and should really be int main(void). This is not C++ and the absence of void does not mean no parameters.

3) getc() returns an int not a char. Google getc() usage.

4) What is in your input file? If you are just reading float numbers you can do so directly with fscanf(input,"%f",array[i]). No need to read character by character.

[vunwe]

hello

[vunwe]

thanx for help