This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 119a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2026-01-25

3153. Immediate-escalating defaulted comparison

(From submission #837.)

Defaulted comparison operators should also be immediate-escalating.

Suggested resolution:

Change in 7.7 [expr.const] bullet 25.2 as follows:

An immediate-escalating function is

• the call operator of a lambda that is not declared with the consteval specifier,
• a defaulted special member function that is not declared with the consteval specifier, or
• a function that is not a prospective destructor and that results from the instantiation of a templated entity defined with the constexpr specifier.

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