From 7a31a1accb7399db8487a73a64e97ce5fef1608d Mon Sep 17 00:00:00 2001
From: sean <sean165@outlook.de>
Date: Tue, 30 Jan 2024 17:39:33 +0100
Subject: [PATCH] Change: Assert when using accessor tools with unloaded
 buffers (see #45)

---
 include/fastgltf/tools.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/fastgltf/tools.hpp b/include/fastgltf/tools.hpp
index 7b8b528b6..2ce80d950 100644
--- a/include/fastgltf/tools.hpp
+++ b/include/fastgltf/tools.hpp
@@ -289,7 +289,8 @@ struct DefaultBufferDataAdapter {
     auto operator()(const Buffer& buffer) const {
 		return std::visit(visitor {
 			[](auto&) -> const std::byte* {
-				return {};
+				assert(false && "Tried accessing a buffer with no data, likely because no buffers were loaded. Perhaps you forgot to specify the LoadExternalBuffers option?");
+				return nullptr;
 			},
 			[&](const sources::Vector& vec) {
                 return reinterpret_cast<const std::byte*>(vec.bytes.data());