macro_rules! register_histogram { ($NAME:expr, $HELP:expr) => { ... }; ($NAME:expr, $HELP:expr, $BUCKETS:expr) => { ... }; ($HOPTS:expr) => { ... }; }
Expand description
Create a [Histogram
] and registers to default registry.
Examples
let opts = histogram_opts!("test_macro_histogram", "help");
let res1 = register_histogram!(opts);
assert!(res1.is_ok());
let res2 = register_histogram!("test_macro_histogram_2", "help");
assert!(res2.is_ok());
let res3 = register_histogram!("test_macro_histogram_4",
"help",
vec![1.0, 2.0]);
assert!(res3.is_ok());