From b7b70c940664a20006933da32b6a874bd6d21922 Mon Sep 17 00:00:00 2001
From: Matt Peddie <matt.peddie@swift-nav.com>
Date: Wed, 5 Jun 2024 14:57:53 +1000
Subject: [PATCH] Ostream support for Measurement

---
 include/albatross/src/covariance_functions/measurement.hpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/albatross/src/covariance_functions/measurement.hpp b/include/albatross/src/covariance_functions/measurement.hpp
index 3b49650f..795f984d 100644
--- a/include/albatross/src/covariance_functions/measurement.hpp
+++ b/include/albatross/src/covariance_functions/measurement.hpp
@@ -29,6 +29,11 @@ template <typename X> struct Measurement {
   X value;
 };
 
+template <typename X>
+std::ostream &operator<<(std::ostream &os, const Measurement<X> &m) {
+  return os << "Meas[" << m.value << "]";
+}
+
 // A simple helper function which aids the compiler with type deduction.
 template <typename FeatureType>
 Measurement<FeatureType> as_measurement(const FeatureType &f) {