fix an existential op issue and add case.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/moonp.cpp b/src/moonp.cpp
index 18eb059..795e6d2 100644
--- a/src/moonp.cpp
+++ b/src/moonp.cpp
@@ -434,14 +434,20 @@ int main(int narg, const char** args) {
                 results.push_back(std::move(task));
         }
         int ret = 0;
-        std::string msg;
+        std::list<std::string> errs;
         for (auto& result : results) {
                 int val = 0;
+                std::string msg;
                 std::tie(val, msg) = result.get();
                 if (val != 0) {
                         ret = val;
+                        errs.push_back(msg);
+                } else {
+                        std::cout << msg;
                 }
-                std::cout << msg;
+        }
+        for (const auto& err : errs) {
+                std::cout << err;
         }
         return ret;
 }