use map_range_int::MapRange; use std::hint::black_box; use std::time::SystemTime; const REPEAT: usize = 10000; const REPEAT_F: f64 = 10000f64; #[test] fn test_map_ui() { let t0 = SystemTime::now(); for _ in 0..REPEAT { for x in 0..=255u16 { let _x2: Option<i16> = black_box(x.map_range((0, 255), (-1000, 1000))); } } eprintln!( "u16->i16 {:#?}ns", (t0.elapsed().unwrap().as_secs_f64() / (255f64 * REPEAT_F)) * 1e9f64 ); } #[test] fn test_map_uu() { let t0 = SystemTime::now(); for _ in 0..REPEAT { for x in 0..=255u16 { let _x2: Option<u16> = black_box(x.map_range((0, 255), (0, 2000))); } } eprintln!( "u16->u16 {:#?}ns", (t0.elapsed().unwrap().as_secs_f64() / (255f64 * REPEAT_F)) * 1e9f64 ); } #[test] fn test_map_ii() { let t0 = SystemTime::now(); for _ in 0..REPEAT { for x in -128..127i16 { let _x2: Option<i16> = black_box(x.map_range((-128, 127), (-1000, 1000))); } } eprintln!( "i16->i16 {:#?}ns", (t0.elapsed().unwrap().as_secs_f64() / (255f64 * REPEAT_F)) * 1e9f64 ); } #[test] fn test_map_iu() { let t0 = SystemTime::now(); for _ in 0..REPEAT { for x in -128..127i16 { let _x2: Option<u16> = black_box(x.map_range((-128, 127), (0, 2000))); } } eprintln!( "i16->u16 {:#?}ns", (t0.elapsed().unwrap().as_secs_f64() / (255f64 * REPEAT_F)) * 1e9f64 ); }