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Updated a couple C++ standard references.

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Andrey Semashev 2021-12-08 16:27:46 +03:00
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doc/operators.qbk
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@ -291,11 +291,12 @@ are:
* [link table:indexable `indexable<>`]
* Any composite operator template that includes at least one of the above
As Daniel Krugler pointed out, this technique violates 14.6.5/2 and is thus
non-portable. The reasoning is, that the operators injected by the instantiation
As Daniel Krugler pointed out, this technique violates C++11 [sect]14.6.5/2 \[temp.inject\]
and is thus non-portable. The reasoning is, that the operators injected by the instantiation
of e.g. `less_than_comparable<my_class>` can not be found by ADL according to the
rules given by 3.4.2/2, since `my_class` is not an associated class of
`less_than_comparable<my_class>`. Thus only use this technique if all else fails.
rules given by C++11 [sect]3.4.2/2 \[basic.lookup.argdep\], since `my_class` is not
an associated class of `less_than_comparable<my_class>`. Thus only use this technique
if all else fails.
[#sec:portability]
[h5 Requirement Portability]