2884. Relational operators for containers should sfinae; if the underlying type is not comparable, neither should the container be

Section: 26 [containers], 23 [utilities] Status: LEWG Submitter: Finland Opened: 2017-02-03 Last modified: 2017-06-27

Priority: Not Prioritized

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Discussion:

Addresses FI 16

Relational operators for containers should sfinae; if the underlying type is not comparable, neither should the container be. Same applies to tuple and pair.

Proposed change: Make the relational operators of containers and utility components reflect the validity of the underlying element types.

[ 2017-06-27 Moved to LEWG after 5 positive votes on c++std-lib. ]

Proposed resolution: