src/fmt.rs

@@ -0,0 +1,41 @@
+use crate::{E_BIAS, F8};
+
+impl std::fmt::Binary for F8 {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		if f.alternate() {
+			f.write_str("0b")?;
+		}
+		if self.0 == 0 {
+			f.write_str("0.00000p0")?;
+			return Ok(());
+		}
+		let (m, e) = self.split();
+		write!(f, "1.{m:05b}p{e}", e = e as i8 - E_BIAS as i8)?;
+		Ok(())
+	}
+}
+
+impl std::fmt::Debug for F8 {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		write!(f, "{self:#b}f8")
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	#[test]
+	fn test_display() {
+		fn fmt_split(m: u8, e: u8) -> String {
+			let v = F8::merge(m, e);
+			format!("{v:b}")
+		}
+		assert_eq!("0.00000p0", fmt_split(0, 0));
+		assert_eq!("1.00000p0", fmt_split(0, E_BIAS));
+		assert_eq!("1.00000p1", fmt_split(0, E_BIAS + 1));
+		assert_eq!("1.00000p-1", fmt_split(0, E_BIAS - 1));
+		assert_eq!("1.00001p0", fmt_split(1, E_BIAS));
+		assert_eq!("1.11111p0", fmt_split(0b11111, E_BIAS));
+	}
+}

src/lib.rs

@@ -1,4 +1,5 @@
 mod conv;
+mod fmt;
 mod ops;
 
 pub const M_BITS: u8 = 5;
@@ -23,43 +24,3 @@ const E_MASK: u8 = E_STORAGE_MAX << M_BITS;
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
 #[repr(transparent)]
 pub struct F8(u8);
-
-impl std::fmt::Binary for F8 {
-	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-		if f.alternate() {
-			f.write_str("0b")?;
-		}
-		if self.0 == 0 {
-			f.write_str("0.00000p0")?;
-			return Ok(());
-		}
-		let (m, e) = self.split();
-		write!(f, "1.{m:05b}p{e}", e = e as i8 - E_BIAS as i8)?;
-		Ok(())
-	}
-}
-
-impl std::fmt::Debug for F8 {
-	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-		write!(f, "{self:#b}f8")
-	}
-}
-
-#[cfg(test)]
-mod tests {
-	use super::*;
-
-	#[test]
-	fn test_display() {
-		fn fmt_split(m: u8, e: u8) -> String {
-			let v = F8::merge(m, e);
-			format!("{v:b}")
-		}
-		assert_eq!("0.00000p0", fmt_split(0, 0));
-		assert_eq!("1.00000p0", fmt_split(0, E_BIAS));
-		assert_eq!("1.00000p1", fmt_split(0, E_BIAS + 1));
-		assert_eq!("1.00000p-1", fmt_split(0, E_BIAS - 1));
-		assert_eq!("1.00001p0", fmt_split(1, E_BIAS));
-		assert_eq!("1.11111p0", fmt_split(0b11111, E_BIAS));
-	}
-}