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Arrays, parameter passing, pointers and dynamic allocation. - ELIS

Arrays, parameter passing, pointers and dynamic allocation. - ELIS

Arrays, parameter passing, pointers and dynamic allocation. - ELIS

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Dynamic De<strong>allocation</strong><br />

int *grades = new int[40]; //finds space for 40 integers,<br />

returns address of first element to int pointer grades<br />

delete [] grades; //NEED [] when deleting an array!<br />

grades = NULL; //good to null so no dangling <strong>pointers</strong><br />

S You MUST pair every new with a delete<br />

S Not releasing <strong>dynamic</strong>ally allocated memory back to the<br />

heap can cause memory leaks. This is BAD.<br />

71

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