What is wrong with my simple code? 2

[Rmcta]

I am getting this error2:
1) error C2108: subscript is not of integral type
2) error C2102: '&' requires l-value

I tried replacing float with int and all works fine. Why do I get the problem with float?

#include <stdio.h>
#define N 15

main()
{
FILE *fdi;
fdi = fopen("input.txt", "r");

float MyArray[N][N];
float x, y;

for (x=0; x<N; x++)
for (y=0; y<N; y++)
fscanf(fdi,"%f", &MyArray[x][y]);


printf("%f", MyArray[3][2]);



return 0;
}

 

[itsgsd]

Array subscripts x & y need to be ints, not floats.

int x,y;

Other than that, it should work fine (providing of course your input is correct in input.txt).

Good luck.

 

[ArkM]

Some addition:
integral types: char (possibly signed/unsigned), int (+ short/long and signed/unsigned), enum - that's all. Integral types present exact values. In C operator

pointer[integral]

is abbreviation for

*(pointer+integral)

Type float (and double) represents an approximation of a number. You can't add float/double values with pointers (by the C language definition). What means one and half's element?..

 

[Rmcta]

You are both 100% correct. Thank you very much for your guidance.