Added check if toot really was sent

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.6)
 project (mastorss
-         VERSION 0.7.5
+         VERSION 0.7.6
          LANGUAGES CXX
 )
 

README.md

@@ -71,7 +71,13 @@ ${HOME}/.config/mastorss/config-example.json
 
 ## Error codes
 
-Same as [mastodon-cpp](https://schlomp.space/tastytea/mastodon-cpp/src/branch/master/README.md#error-codes)
+Same as
+[mastodon-cpp](https://schlomp.space/tastytea/mastodon-cpp/src/branch/master/README.md#error-codes),
+plus:
+
+|      Code | Explanation                             |
+| --------: |:----------------------------------------|
+|         1 | Could not send post for unknown reasons |
 
 # Copyright
 

src/mastorss.cpp

@@ -100,6 +100,12 @@ int main(int argc, char *argv[])
         Mastodon::Easy masto(instance, access_token);
 
         answer = masto.send_post(*rit, ret);
+        if (answer.to_object().isNull())
+        {
+            std::cerr << "Could not send post for unknown reasons.\n"
+            std::cerr << "Please file a bug at <https://schlomp.space/tastytea/mastorss/issues>.\n":
+            return 1;
+        }
 
         if (ret != 0)
         {