Re: [Vala] how to declare multi-dimensional arrays in Genie?
On 7/15/2010 7:34 PM, Jamie McCracken wrote:
On Thu, 2010-07-15 at 19:26 -0400, Ron Murawski wrote:
I wanted the multi-dimensional array in the data area, not on the
stack.
In C:
int my_array[64][13];
int main(int argc, **char argv)
{
my_array[7][7] = 7;
// more stuff
return 0;
}
my_array is allocated on the stack in the above example
the previous posts have shown how to do it on the heap (via use of new
array) but as thats not what you want I would suggest filing a
bug/feature request for vala to support stack allocation of
multi-dimensional arrays
jamie
I am perfectly happy using the heap for multi-dimensional arrays.
I am much too new to the language to be making language feature
requests. Maybe next year... ;-)
Thanks again to everyone!
Ron
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
On Thu, 2010-07-15 at 11:52 +0200, Nicolas wrote:
Hi Ron,
Try this:
const myarray : array of uint64 = {13, 64}
Isn't this a mono-dimensional array with 2 elements ?
Xav
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
Isn't this a mono-dimensional array with 2 elements ?
Xav
Hi,
I'm not an expert nor a real developer, but multidimensional array
seem to be like this:
var myarray = new array of uint64[3, 2] = {{13, 64}, {14, 65}, {15, 66}}
or
myarray : array of uint64[3, 2] = new array of uint64[3, 2] = {{13, 64},
{14, 65}, {15, 66}}
Is this correct ? Someone can confirm ?
Nicolas.
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
On 7/15/2010 6:23 AM, Nicolas wrote:
Hi,
I'm not an expert nor a real developer, but multidimensional array
seem to be like this:
var myarray = new array of uint64[3, 2] = {{13, 64}, {14, 65}, {15, 66}}
or
myarray : array of uint64[3, 2] = new array of uint64[3, 2] = {{13,
64}, {14, 65}, {15, 66}}
Is this correct ? Someone can confirm ?
Nicolas.
Both of the above multi-dimensional array declarations work as intended,
but they do not seem to be global.
Ron
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
Both of the above multi-dimensional array declarations work as intended,
but they do not seem to be global.
Is this what you are trying to do?
int [,] arr;
public void main(string [] args) {
arr = new int[3,4];
arr[0,0] = 1;
arr[1,1] = 2;
stderr.printf(%d:%d\n, arr[0,0], arr[1,1]);
}
Hope that helps
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
On Thu, 2010-07-15 at 18:34 -0400, Ron Murawski wrote:
On 7/15/2010 1:45 PM, Robert Powell wrote:
Both of the above multi-dimensional array declarations work as
intended, but they do not seem to be global.
Is this what you are trying to do?
int [,] arr;
public void main(string [] args) {
arr = new int[3,4];
arr[0,0] = 1;
arr[1,1] = 2;
stderr.printf(%d:%d\n, arr[0,0], arr[1,1]);
}
Hope that helps
Thanks, Robert! That's exactly what I was trying to accomplish, but I was
trying to do it all at compile-time.
Hot diggety! I'm about to write a chess program in Genie! :-)
Here's Robert's example translated from Vala to Genie:
[indent=4]
//int [,] arr;
arr : array of int[,] // declare array name with global scope
//public void main(string [] args) {
init
//arr = new int[3,4];
arr = new array of int[3,4] // allocate the array
arr[0,0] = 1; // initialize it
arr[1,1] = 2;
stderr.printf(%d:%d\n, arr[0,0], arr[1,1]); // print it
//}
I want to make certain I am understanding this correctly:
1. All multi-dimensional arrays in Vala/Genie *must* be allocated at
run-time,
not at compile-time
2. Optionally, the multi-dimensional array name can be declared a global
name
Is this correct?
if you mean you want to allocate multi dimensional arrays on the stack
like ordinary arrays then i dont know if vala supports that
If it does then it looks like a bug in Genie
jamie
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
On 7/15/2010 6:50 PM, Jamie McCracken wrote:
On Thu, 2010-07-15 at 18:34 -0400, Ron Murawski wrote:
On 7/15/2010 1:45 PM, Robert Powell wrote:
Both of the above multi-dimensional array declarations work as
intended, but they do not seem to be global.
Is this what you are trying to do?
int [,] arr;
public void main(string [] args) {
arr = new int[3,4];
arr[0,0] = 1;
arr[1,1] = 2;
stderr.printf(%d:%d\n, arr[0,0], arr[1,1]);
}
Hope that helps
Thanks, Robert! That's exactly what I was trying to accomplish, but I was
trying to do it all at compile-time.
Hot diggety! I'm about to write a chess program in Genie! :-)
Here's Robert's example translated from Vala to Genie:
[indent=4]
//int [,] arr;
arr : array of int[,] // declare array name with global scope
//public void main(string [] args) {
init
//arr = new int[3,4];
arr = new array of int[3,4] // allocate the array
arr[0,0] = 1; // initialize it
arr[1,1] = 2;
stderr.printf(%d:%d\n, arr[0,0], arr[1,1]); // print it
//}
I want to make certain I am understanding this correctly:
1. All multi-dimensional arrays in Vala/Genie *must* be allocated at
run-time,
not at compile-time
2. Optionally, the multi-dimensional array name can be declared a global
name
Is this correct?
if you mean you want to allocate multi dimensional arrays on the stack
like ordinary arrays then i dont know if vala supports that
If it does then it looks like a bug in Genie
jamie
I wanted the multi-dimensional array in the data area, not on the stack.
In C:
int my_array[64][13];
int main(int argc, **char argv)
{
my_array[7][7] = 7;
// more stuff
return 0;
}
The space for the array is reserved by the C compiler at compile-time in
the data area, the array is guaranteed to be zeroed, and the name
'my_array' is recognized globally by all modules, possibly with the help
of extern statements.
I was trying to do the same in Vala/Genie, but this does not seem to be
possible.
Best regards,
Ron
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Re: [Vala] how to declare multi-dimensional arrays in Genie?
On Thu, 2010-07-15 at 19:26 -0400, Ron Murawski wrote:
I wanted the multi-dimensional array in the data area, not on the
stack.
In C:
int my_array[64][13];
int main(int argc, **char argv)
{
my_array[7][7] = 7;
// more stuff
return 0;
}
my_array is allocated on the stack in the above example
the previous posts have shown how to do it on the heap (via use of new
array) but as thats not what you want I would suggest filing a
bug/feature request for vala to support stack allocation of
multi-dimensional arrays
jamie
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