Casey Carter 39902b6ec0 span_iterator: converting constructor isn't a copy constructor (#511) ... Fixes #510. * Constrain the converting constructor to not participate in overload resolution when IsConst is true, so that it is never a copy constructor. * Use Default Member Initializers for span_iterator's data members so that the default constructor can be explicitly defaulted. * Declare all members of span_iterator GSL_NOEXCEPT: they only throw when contract violations throw. * Don't use & in operator-> since evil types may overload it.		2017-05-26 15:41:12 -07:00
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gsl	span_iterator: converting constructor isn't a copy constructor (#511)	2017-05-26 15:41:12 -07:00