Fixes

src/gate.rs

@@ -0,0 +1,90 @@
+use num_complex::Complex32;
+use std::f32::consts::FRAC_1_SQRT_2;
+use std::fmt;
+
+/// Representation of a gate
+///
+/// ```
+///# extern crate qcgpu;
+///# extern crate num_complex;
+///# use qcgpu::Gate;
+///# use num_complex::Complex32;
+/// Gate {
+///    a: Complex32::new(0.0, 0.0), b: Complex32::new(1.0, 0.0),
+///    c: Complex32::new(1.0, 0.0), d: Complex32::new(0.0, 0.0)
+/// };
+///
+///
+#[derive(Debug, Clone, Copy)]
+pub struct Gate {
+    pub a: Complex32,
+    pub b: Complex32,
+    pub c: Complex32,
+    pub d: Complex32,
+}
+
+impl fmt::Display for Gate {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "[[{}, {}], [{}, {}]]", self.a, self.b, self.c, self.d)
+    }
+}
+
+/// Hadamard Gate
+///
+/// [0.70710678118, 0.70710678118]
+///
+/// [0.70710678118, -0.70710678118]
+#[inline]
+pub fn h() -> Gate {
+    Gate {
+        a: Complex32::new(FRAC_1_SQRT_2, 0.0),
+        b: Complex32::new(FRAC_1_SQRT_2, 0.0),
+        c: Complex32::new(FRAC_1_SQRT_2, 0.0),
+        d: Complex32::new(-FRAC_1_SQRT_2, 0.0),
+    }
+}
+
+/// Pauli X / NOT Gate
+///
+/// [0, 1]
+///
+/// [1, 0]
+#[inline]
+pub fn x() -> Gate {
+    Gate {
+        a: Complex32::new(0.0, 0.0),
+        b: Complex32::new(1.0, 0.0),
+        c: Complex32::new(1.0, 0.0),
+        d: Complex32::new(0.0, 0.0),
+    }
+}
+
+/// Pauli Y Gate
+///
+/// [0, -i]
+///
+/// [i, 0]
+#[inline]
+pub fn y() -> Gate {
+    Gate {
+        a: Complex32::new(0.0, 0.0),
+        b: Complex32::new(0.0, -1.0),
+        c: Complex32::new(0.0, 1.0),
+        d: Complex32::new(0.0, 0.0),
+    }
+}
+
+/// Pauli Z Gate
+///
+/// [1, 0]
+///
+/// [0, -1]
+#[inline]
+pub fn z() -> Gate {
+    Gate {
+        a: Complex32::new(1.0, 0.0),
+        b: Complex32::new(0.0, 0.0),
+        c: Complex32::new(0.0, 0.0),
+        d: Complex32::new(-1.0, 0.0),
+    }
+}