Add backtraces to examples (#5973)

* examples: Log stack trace on exceptions

For now, this is only implemented on Windows.
This helps to address #5520.

* examples: Print log file if there is any

* format code

---------

Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/examples/example-main/main.cpp b/examples/example-main/main.cpp
new file mode 100644
index 000000000..46ffc7278
--- /dev/null
+++ b/examples/example-main/main.cpp
@@ -0,0 +1,32 @@
+#include "../stacktrace-windows/common.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int exampleMain(int argc, char** argv);
+
+#if defined(_WIN32)
+
+#include <windows.h>
+
+int main(int argc, char** argv)
+{
+    __try
+    {
+        return exampleMain(argc, argv);
+    }
+    __except (exceptionFilter(stdout, GetExceptionInformation()))
+    {
+        ::exit(1);
+    }
+}
+
+#else // defined(_WIN32)
+
+int main(int argc, char** argv)
+{
+    // TODO: Catch exception and print stack trace also on non-Windows platforms.
+    return exampleMain(argc, argv);
+}
+
+#endif