better NAN prevention

src/cli/main.rs

@@ -131,7 +131,10 @@ fn parse_and_compile(opts: &PlayOpts) -> anyhow::Result<Vec<f64>> {
         .compile_all(tokens)
         .inspect(|v| {
             for sample in v {
-                assert_ne!(&f64::NAN, sample, "Waiter! There's a NaN in my samples!");
+                assert!(
+                    !sample.abs().is_nan(),
+                    "Waiter! There's a NaN in my samples!"
+                );
             }
         })
         .context("Failed to process input tokens")