tmp: CI debugging

Author: franzpoeschel

include/openPMD/Datatype.tpp

@@ -292,7 +292,7 @@ constexpr inline bool isSameChar(Datatype d, Datatype e)
 
 constexpr bool isSame(openPMD::Datatype const d, openPMD::Datatype const e)
 {
-    return
+    auto res =
         // exact same type
         static_cast<int>(d) == static_cast<int>(e)
         // same int
@@ -303,6 +303,14 @@ constexpr bool isSame(openPMD::Datatype const d, openPMD::Datatype const e)
         || isSameComplexFloatingPoint(d, e)
         // same char
         || isSameChar(d, e);
+    if (!res)
+    {
+        std::cerr << "Comparing Datatype " << d << " to " << e << " failed:\n";
+        std::cerr << "\t(signed: " << isSigned(d) << ", size: " << toBits(d)
+                  << ") -- (signed: " << isSigned(e) << ", size: " << toBits(e)
+                  << ")" << std::endl;
+    }
+    return res;
 }
 } // namespace openPMD