28 lines
458 B
Rust
28 lines
458 B
Rust
#![feature(rustc_attrs, const_fn)]
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#[rustc_args_required_const(0)]
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fn foo(_a: i32) {
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}
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#[rustc_args_required_const(1)]
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fn bar(_a: i32, _b: i32) {
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}
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const A: i32 = 3;
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const fn baz() -> i32 {
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3
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}
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fn main() {
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foo(2);
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foo(2 + 3);
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const BAZ: i32 = baz();
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foo(BAZ);
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let a = 4;
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foo(A);
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foo(a); //~ ERROR: argument 1 is required to be a constant
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bar(a, 3);
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bar(a, a); //~ ERROR: argument 2 is required to be a constant
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}
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