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--- cpp:basic_data_types [2021/04/25 14:37]
gthanos [Δήλωση και αρχικοποίηση μεταβλητών]
+++ cpp:basic_data_types [2021/04/25 15:02]
gthanos [Αυτόματη εξαγωγή τύπου δεδομένων]
@@ Line 74: / Line 74: @@
   long b(3);              // initial value: 3  sizeof long
-  auto result = a + b;    // compiler automatically extracts the result's type.
+  auto result = a + b;    // compiler automatically extracts the variable type.
-  cout << result << endl;
+  cout << "sizeof(result): " << sizeof(result) << endl;
+  cout << "sizeof(int): " << sizeof(int) << endl;
+  cout << "sizeof(long): " << sizeof(long) << endl;
   return 0;
@@ Line 93: / Line 96: @@
   decltype(b) result;
-  result = a + b;
+  cout << "sizeof(result): " << sizeof(result) << endl;
-  cout << result << endl;
+  cout << "sizeof(int): " << sizeof(int) << endl;
+  cout << "sizeof(long): " << sizeof(long) << endl;
   return 0;

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