Example

int main(int argc, char* argv[]) { long *Array = (long*) malloc(N * sizeof(long*)); long *Array = (long*) realloc(Array, N); return 0; }

Solution

Use the sizeof() method to allocate the correct number of bytes. int main(int argc, char* argv[]) { long *Array = (long*) malloc(N * sizeof(long)); long *Array = (long*) realloc(Array, N * sizeof(long)); return 0; }