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Comments on How to declare variable-length arrays correctly?
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How to declare variable-length arrays correctly?
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This is meant as a FAQ Q&A regarding variable-length arrays (VLA). The two bugs described below are surprisingly common.
I'm trying to use the variable-length arrays feature of C99 (and newer) but I'm facing problems with it.
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Whenever I write a program like this, I get strange crashes and unexpected behavior:
int size; int array[size]; scanf("%d", &size); -
Similarly, I also get crashes and strange behavior when I do this:
int size = 1000000; ... int array[size];
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