On Tuesday, 14 November 2023 04:17:18 PST Marc Mutz via Development wrote: > It's dangerously close to q20, yes, but q20 types switch at compile-time > between std and fall-back types, which means they cannot be used in the > ABI (yes, I used qxp::function_ref in QTestLib, but that doesn't have a > `using std::...`, yet, so we're still ok, and QTestLib doesn't have BC > constraints).
Actually, how about we do exactly that: we DO NOT use them in the ABI and thus we DO use std:: types when compiling in C++20 mode. We can only use them in inline-only functions. The ABI functions can return one of these other types: bool (for equality comparisons) int (for non-partial ordering) QPartialOrdering (for partial ordering) -- Thiago Macieira - thiago.macieira (AT) intel.com Cloud Software Architect - Intel DCAI Cloud Engineering
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