This is also true in C (but not C++) since x[y] is defined as *(x+y)
regardless of the types of x and y. Note that addition of pointers is
commutative, although one operand has to be pointer and the other
integral.
On C++ this is not true in general if x is a class type, since the
former would invoke x.operator[](y), whereas the latter would be
interpreted as *(x.operator+(y)) and there ain't no law that says they
have to be the same, and generally won't be.
-hpa
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I am Bahá'í -- ask me about it or see http://www.bahai.org/
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