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const-qualified objects allows the programmer to take the address of the object.
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int const int max = 15; int a[max]; /* invalid declaration outside of a function */ int const int *p; p = &max; /* a const-qualified object can have its address taken */ |
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enum { max = 15 };
int a[max]; /* OK outside function */
int const int *p;
p = &max; /* error: '&' on enum constant */
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