From f6dd5eaa316fdd6fb05e77289878ec5b50249c81 Mon Sep 17 00:00:00 2001
From: Vincent Coubard <vincent.coubard@arm.com>
Date: Wed, 22 Aug 2018 13:31:26 +0100
Subject: [PATCH] Span: Fix static assert message in default constructor.

---
 platform/Span.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/platform/Span.h b/platform/Span.h
index 2fb1673449..0c06a30165 100644
--- a/platform/Span.h
+++ b/platform/Span.h
@@ -98,7 +98,10 @@ struct Span {
      * Extent != 0 .
      */
     Span() : _data(NULL) {
-        MBED_STATIC_ASSERT(Extent == 0, "Invalid extent for a Span");
+        MBED_STATIC_ASSERT(
+            Extent == 0,
+            "Cannot default construct a static-extent Span (unless Extent is 0)"
+        );
     }
 
     /**