units of measurement

1 files changed, 23 insertions, 0 deletions

diff --git a/src/volume.rs b/src/volume.rs
new file mode 100644
index 0000000..d6ef206
--- /dev/null
+++ b/src/volume.rs
@@ -0,0 +1,23 @@
+pub struct Volume(f64); // Base unit is cubic metres
+
+impl Volume {
+    pub fn from_cubic_metres(cubic_metres: f64) -> Volume {
+        Volume(cubic_metres)
+    }
+
+    pub fn from_cubic_centimetres(cubic_centimetres: f64) -> Volume {
+        Volume(cubic_centimetres / 1_000_000.)
+    }
+
+    pub fn as_cubic_metres(&self) -> f64 {
+        self.0
+    }
+
+    pub fn as_cubic_centimetres(&self) -> f64 {
+        self.0 * 1_000_000.
+    }
+
+    pub fn as_cubic_feet(&self) -> f64 {
+        self.0 * 35.3147
+    }
+}