Reverse impls available for Rust >=1.19

2026-06-15 13:11:01 +00:00 · 2019-02-20 04:53:34 +03:00
parent f3ffcfd61e
commit 71fe2a5534
4 changed files with 9 additions and 0 deletions
@@ -23,6 +23,12 @@ fn main() {
        println!("cargo:rustc-cfg=collections_bound");
    }

+    // core::cmp::Reverse stabilized in Rust 1.19:
+    // https://doc.rust-lang.org/stable/core/cmp/struct.Reverse.html
+    if minor >= 19 {
+        println!("cargo:rustc-cfg=core_reverse");
+    }
+
    // CString::into_boxed_c_str stabilized in Rust 1.20:
    // https://doc.rust-lang.org/std/ffi/struct.CString.html#method.into_boxed_c_str
    if minor >= 20 {