//@ revisions: full gce //@ compile-flags: -Zdeduplicate-diagnostics=yes #![cfg_attr(gce, feature(generic_const_exprs))] #![allow(incomplete_features)] use std::mem::size_of; fn foo() { [0; size_of::<*mut T>()]; // lint on stable, error with `generic_const_exprs` //[gce]~^ ERROR unconstrained //[full]~^^ WARNING cannot use constants //[full]~| WARNING this was previously accepted let _: [u8; size_of::<*mut T>()]; // error on stable, error with gce //[full]~^ ERROR generic parameters may not be used //[gce]~^^ ERROR unconstrained generic [0; if false { size_of::() } else { 3 }]; // lint on stable, error with gce //[gce]~^ ERROR overly complex //[full]~^^ WARNING cannot use constants //[full]~| WARNING this was previously accepted let _: [u8; if true { size_of::() } else { 3 }]; // error on stable, error with gce //[full]~^ ERROR generic parameters may not be used //[gce]~^^ ERROR overly complex } fn main() {}