From dfb14abf7876d54f0eaf4ca1694a083ef641b729 Mon Sep 17 00:00:00 2001
From: Eran <librealsense.eran@gmail.com>
Date: Sun, 15 Oct 2023 11:56:40 +0300
Subject: [PATCH] replace UNKNOWN_VALUE macro with constexpr

---
 src/core/enum-helpers.h | 4 ++--
 src/to-string.cpp       | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/enum-helpers.h b/src/core/enum-helpers.h
index c7626788d6..ca9381b1b0 100644
--- a/src/core/enum-helpers.h
+++ b/src/core/enum-helpers.h
@@ -7,10 +7,10 @@
 #include <librealsense2/hpp/rs_types.hpp>
 
 
-#define UNKNOWN_VALUE "UNKNOWN"
+namespace librealsense {
 
 
-namespace librealsense {
+constexpr static char const * UNKNOWN_VALUE = "UNKNOWN";
 
 
 // Require the last enumerator value to be in format of RS2_#####_COUNT
diff --git a/src/to-string.cpp b/src/to-string.cpp
index 647f9eeab0..7515514621 100644
--- a/src/to-string.cpp
+++ b/src/to-string.cpp
@@ -17,7 +17,7 @@
 #define STRARR( ARRAY, T, X ) ARRAY[RS2_##T##_##X] = STRX( X )
 
 
-static std::string const unknown_value_str( UNKNOWN_VALUE );
+static std::string const unknown_value_str( librealsense::UNKNOWN_VALUE );
 
 
 namespace librealsense {