I was using clang++ to compile the program and I need to compile it with no error in clang++. I got no error with other compilers.
The error line in the code is
memset(grid_, 0, sizeof(int) * x_quadrants * y_quadrants);
The whole function is like this:
Ocean::Ocean(int num_boats, int x_quadrants, int y_quadrants)
{
grid_ = new int[x_quadrants * y_quadrants];
memset(grid_, 0, sizeof(int) * x_quadrants * y_quadrants);
x_quadrants_ = x_quadrants;
y_quadrants_ = y_quadrants;
boats_ = new Boat[num_boats];
num_boats_ = num_boats;
stats_.hits = 0;
stats_.misses = 0;
stats_.duplicates = 0;
stats_.sunk = 0;
}
I am using memset so I won't get garbage value output when test with different driver. There's no need to provide command line for clang because I'm not allowed to change it.
Replace
grid_ = new int[x_quadrants * y_quadrants];
memset(grid_, 0, sizeof(int) * x_quadrants * y_quadrants);
with just
grid_ = new int[x_quadrants * y_quadrants]();
Note the parenthesis, that tells the compiler you want this zero-initialized (or really value-initialization, which reduces to zero-initialization here).
Even better, use a std::vector
instead of this dangerous DIY scheme.