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-rw-r--r--examples/pugl_vulkan_cxx_demo.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/examples/pugl_vulkan_cxx_demo.cpp b/examples/pugl_vulkan_cxx_demo.cpp
index 632f784..0a86d16 100644
--- a/examples/pugl_vulkan_cxx_demo.cpp
+++ b/examples/pugl_vulkan_cxx_demo.cpp
@@ -693,6 +693,7 @@ readFile(const std::string& filename)
&fclose};
if (!file) {
+ std::cerr << "Failed to open file '" << filename << "'\n";
return {};
}