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Search Query:

Showing content from https://timsong-cpp.github.io/cppwp/n4140/meta.unary.prop.query below:

[meta.unary.prop.query]

Each of these templates shall be a UnaryTypeTrait ([meta.rqmts]) with a BaseCharacteristic of integral_constant<size_t, Value>.

Example:

assert(rank<int>::value == 0);
assert(rank<int[2]>::value == 1);
assert(rank<int[][4]>::value == 2);

 — end example ]

Example:

 assert(extent<int>::value == 0);
assert(extent<int[2]>::value == 2);
assert(extent<int[2][4]>::value == 2);
assert(extent<int[][4]>::value == 0);
assert((extent<int, 1>::value) == 0);
assert((extent<int[2], 1>::value) == 0);
assert((extent<int[2][4], 1>::value) == 4);
assert((extent<int[][4], 1>::value) == 4);

 — end example ]


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