diff options
Diffstat (limited to 'vendor/autocfg/examples/paths.rs')
| -rw-r--r-- | vendor/autocfg/examples/paths.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/vendor/autocfg/examples/paths.rs b/vendor/autocfg/examples/paths.rs new file mode 100644 index 0000000..b7a6ca7 --- /dev/null +++ b/vendor/autocfg/examples/paths.rs @@ -0,0 +1,22 @@ +extern crate autocfg; + +fn main() { + // Normally, cargo will set `OUT_DIR` for build scripts. + let ac = autocfg::AutoCfg::with_dir("target").unwrap(); + + // since ancient times... + ac.emit_has_path("std::vec::Vec"); + ac.emit_path_cfg("std::vec::Vec", "has_vec"); + + // rustc 1.10.0 + ac.emit_has_path("std::panic::PanicInfo"); + ac.emit_path_cfg("std::panic::PanicInfo", "has_panic_info"); + + // rustc 1.20.0 + ac.emit_has_path("std::mem::ManuallyDrop"); + ac.emit_path_cfg("std::mem::ManuallyDrop", "has_manually_drop"); + + // rustc 1.25.0 + ac.emit_has_path("std::ptr::NonNull"); + ac.emit_path_cfg("std::ptr::NonNull", "has_non_null"); +} |