On 2010-08-07 9:26, simendsjo wrote:
The spec for array says:
Static arrays are value types. Unlike in C and D version 1, static
arrays are passed to functions by value. Static arrays can also be
returned by functions.
I don't get the "static arrays are passed to functions by value" part.
Here I am passing in a static and dynamic array. Both are passed by
value, and the function can modify the array of both
{
void func(int[] arr, void* ptr) {
arr[0] = 9;
assert(&arr != ptr);
}
int[3] a = [1,2,3];
func(a, &a);
assert(a == [9,2,3]); // changed..
int[] b = [1,2,3];
func(b, &b);
assert(b == [9,2,3]);
}
When you use "int[]" as the parameter type, the array is passed by
reference as a slice of the original array. If you write the function
like this:
fund(int[3] arr, void* ptr) {...}
Now the array is passed by value and a copy is made.
