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