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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/clap/examples/tutorial_builder/03_05_default_values.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/clap/examples/tutorial_builder/03_05_default_values.rs')
-rw-r--r--vendor/clap/examples/tutorial_builder/03_05_default_values.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/vendor/clap/examples/tutorial_builder/03_05_default_values.rs b/vendor/clap/examples/tutorial_builder/03_05_default_values.rs
new file mode 100644
index 000000000..c68e87973
--- /dev/null
+++ b/vendor/clap/examples/tutorial_builder/03_05_default_values.rs
@@ -0,0 +1,16 @@
+// Note: this requires the `cargo` feature
+
+use clap::{arg, command};
+
+fn main() {
+ let matches = command!()
+ .arg(arg!([NAME]).default_value("alice"))
+ .get_matches();
+
+ println!(
+ "NAME: {:?}",
+ matches
+ .get_one::<String>("NAME")
+ .expect("default ensures there is always a value")
+ );
+}