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C ++ 11 iterate on a shredded matrix?
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C ++ 11 iterate on a shredded matrix?
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I'm trying to initialise a jagged array. Why doesn't this work:
int *arr[10];
for (int *row : arr)
row = new int[10];
it runs but then arr is unreadable.
How can I use this form of "for" properly in this situation?
Otherwise how can I just initialise a jagged array of X rows, each row is Y elements and set all to zero?
int* arr[10];
for (int*& row : arr)
row = new int[10];
Since you are changing the value in the array inside of the loop you need to iterate over references instead of values (which are only copies of what was in the array). This is very similar to function call semantics.
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