Passing 2D arrays

[anonymousy]

After trying to run some code, the code seems to compile, but during run time, i get the following error message:

Unhandled exception at 0x777e15de in Hot Plate.exe: 0xC0000005: Access violation.

I was trying to fill a 20x20 array with 100 on the top and bottom rows(except the corners) and the rest as 0.
Here is my code:

#include <iostream>
#include <string>
#include <array>

using namespace std;

const int SIZE = 20;

void initial_temp(double temp[][SIZE])
{
for (int i = 1; i<SIZE; i++)
{
const double ELEMENT = 100;
temp[0][i]=ELEMENT;
temp[SIZE][i]=ELEMENT;
for (int row = 1; row<SIZE; row++)
{
temp[i][row]=0;
}
}
for (int i =0; 1<=SIZE; i++)
{
temp[i][0]=0;
temp[i][SIZE]=0;
}
return;
}


int main()
{
double temp[SIZE][SIZE];
initial_temp (temp);
return 0;
}

The error message gives the option to break, and shows the breakpoint at the line where i try to call initial_temp() in main().
The assignment is due tomorrow and I have a long way to go, any help would be much appreciated.

[Chervil]

Several errors:
1<=SIZE should be i<SIZE Note 1 and i

temp[SIZE][i] and temp[i][SIZE]
should be temp[SIZE-1][i] and temp[i][SIZE-1]

[anonymousy]

Thanks, could you elaborate on why it gave me such an odd error code?

[Chervil]

All these errors result in data outside the boundaries of the array being accessed.
The subscript needs to go from 0 to 19.

If you try to update memory which you do not own, an access violation is the result.

The 1<SIZE error was the biggest, as both 1 and SIZE are constant, thus the loop never terminates and the program would go on writing to memory throughout the whole machine, if it was allowed.

I think "0xC0000005" is a standard Microsoft error code, Google returns lots of hits for it.

[anonymousy]

Thanks again