arg[]

linuxanswer · 12-01-2003, 03:01 PM

sorry but this:

arr[] = i ;

it's right? arr[] what points? what's his meaning ?

linuxanswer · 12-01-2003, 03:22 PM

that's to say, arr[] = i , put the content of i' variable in first element of arr?

oulevon · 12-02-2003, 01:01 AM

I'm not sure what you're asking. arr[] is obviously an array of some type, and i is presumed to be a variable of some type too, but you don't indicate what type of array arr is or why type of variable i is. If I had an array of integers, and a variable i that was an integer. I would do the following to put i at the first index of arr[]:

Code:


int main(){
    int i = 5;   /* an arbitrary value */
    int arr[10];   /* an array of 10 integers */
    arr[0] = i;    /* assign value i (which = 5) to the first index in arr[] */

   return 0;
}

I hope that helps.

vasudevadas · 12-03-2003, 10:34 AM

If arr[] = i has a meaning, I don't know what it is. If you have an array arr[] then arr points to the beginning of the array, not arr[]. Similarly, if you are assigning values then you can say arr[n] = i, and also in the declaration you can say int arr[] = {i}, but not arr[] = i.

kev82 · 12-03-2003, 11:41 AM

arr[] = i is not valid c++ as far as i can work out, ive tried to do it by overloading the [] operator but it doesnt work because [] has to have one argument and it cant be a default argument

deiussum · 12-05-2003, 09:06 AM

It'd be useful to know what language is being talked about.

As kev said, it doesn't seem like valid C/C++. In C/C++ you would have a syntax like so:

int arr[] = {i, i2, i3, i4};

Your syntax reminds me somewhat of other languages I know, but none that have exactly that syntax...

coolman0stress · 12-05-2003, 08:27 PM

Depends on the language, cause in php that would actually add an element to the array. It's cool, though you would need the stupid $ signs.