Fix clippy issues (#40)

* Fix clippy issues

The result of running `cargo clippy --fix --all-targets --all-features`
twice.

* Manually fix another clippy issue

    warning: unnecessary `if let` since only the `Ok` variant of the iterator element is used
      --> examples/monitor-shtc3.rs:43:9
       |
    43 |           for key in io::stdin().keys() {
       |           ^          ------------------ help: try: `io::stdin().keys().flatten()`
       |  _________|
       | |
    44 | |             if let Ok(Key::Ctrl('c')) = key {
    45 | |                 running.store(false, Ordering::SeqCst);
    46 | |                 break;
    47 | |             }
    48 | |         }
       | |_________^
       |
    help: ...and remove the `if let` statement in the for loop
      --> examples/monitor-shtc3.rs:44:13
       |
    44 | /             if let Ok(Key::Ctrl('c')) = key {
    45 | |                 running.store(false, Ordering::SeqCst);
    46 | |                 break;
    47 | |             }
       | |_____________^
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
       = note: `#[warn(clippy::manual_flatten)]` on by default

examples/monitor-shtc3.rs

@@ -40,8 +40,8 @@ fn main() -> Result<(), io::Error> {
 
     // Handle Ctrl-c
     thread::spawn(move || {
-        for key in io::stdin().keys() {
-            if let Ok(Key::Ctrl('c')) = key {
+        for key in io::stdin().keys().flatten() {
+            if Key::Ctrl('c') == key {
                 running.store(false, Ordering::SeqCst);
                 break;
             }
@@ -147,7 +147,7 @@ fn show_chart<B: Backend>(
             .name("Low power mode")
             .marker(Marker::Braille)
             .style(Style::default().fg(color_lowpwr))
-            .data(&data_lowpwr),
+            .data(data_lowpwr),
         Dataset::default()
             .name("Normal mode")
             .marker(Marker::Dot)
@@ -175,7 +175,7 @@ fn show_chart<B: Backend>(
 
 fn render(terminal: &mut Terminal<CrosstermBackend<RawTerminal<Stdout>>>, data: &Data) {
     terminal
-        .draw(|mut f| {
+        .draw(|f| {
             let chunks = Layout::default()
                 .direction(Direction::Vertical)
                 .margin(1)
@@ -216,7 +216,7 @@ fn render(terminal: &mut Terminal<CrosstermBackend<RawTerminal<Stdout>>>, data:
                 Color::Red,
                 temp_lowpwr.as_slice(),
                 Color::Magenta,
-                &mut f,
+                f,
                 chunks[0],
             );
             show_chart(
@@ -226,7 +226,7 @@ fn render(terminal: &mut Terminal<CrosstermBackend<RawTerminal<Stdout>>>, data:
                 Color::Blue,
                 humi_lowpwr.as_slice(),
                 Color::Cyan,
-                &mut f,
+                f,
                 chunks[1],
             );
         })

src/types.rs

@@ -98,7 +98,7 @@ mod tests {
         let test_data = [
             (0x0000, -45000),
             // Datasheet setion 5.11 "Conversion of Sensor Output"
-            (((0b0110_0100 as u16) << 8) | 0b1000_1011, 23730),
+            ((0b0110_0100_u16 << 8) | 0b1000_1011, 23730),
         ];
         for td in &test_data {
             assert_eq!(convert_temperature(td.0), td.1);
@@ -111,7 +111,7 @@ mod tests {
         let test_data = [
             (0x0000, 0),
             // Datasheet setion 5.11 "Conversion of Sensor Output"
-            (((0b1010_0001 as u16) << 8) | 0b0011_0011, 62968),
+            ((0b1010_0001_u16 << 8) | 0b0011_0011, 62968),
         ];
         for td in &test_data {
             assert_eq!(convert_humidity(td.0), td.1);
@@ -122,8 +122,8 @@ mod tests {
     #[test]
     fn measurement_conversion() {
         // Datasheet setion 5.11 "Conversion of Sensor Output"
-        let temperature = convert_temperature(((0b0110_0100 as u16) << 8) | 0b1000_1011);
-        let humidity = convert_humidity(((0b1010_0001 as u16) << 8) | 0b0011_0011);
+        let temperature = convert_temperature((0b0110_0100_u16 << 8) | 0b1000_1011);
+        let humidity = convert_humidity((0b1010_0001_u16 << 8) | 0b0011_0011);
         assert_eq!(temperature, 23730);
         assert_eq!(humidity, 62968);
     }
@@ -146,8 +146,8 @@ mod tests {
     fn measurement_from_into() {
         // Datasheet setion 5.11 "Conversion of Sensor Output"
         let raw = RawMeasurement {
-            temperature: ((0b0110_0100 as u16) << 8) | 0b1000_1011,
-            humidity: ((0b1010_0001 as u16) << 8) | 0b0011_0011,
+            temperature: (0b0110_0100_u16 << 8) | 0b1000_1011,
+            humidity: (0b1010_0001_u16 << 8) | 0b0011_0011,
         };
 
         // std::convert::From