generator.cc

1 files changed, 15 insertions, 0 deletions

diff --git a/c,cc/generator.cc b/c,cc/generator.cc
new file mode 100644
index 0000000..c073e2e
--- /dev/null
+++ b/c,cc/generator.cc
@@ -0,0 +1,15 @@
+#include <functional>
+#include <iostream>
+
+
+std::function<int()> generator = []{
+    int i = 0;
+      return [=]() mutable {
+        return i < 10 ? i++ : -1;
+      };
+}();
+
+int main(void)
+{
+int ret = 0; while ((ret = generator()) != -1) std::cout << "generator: " << ret << std::endl;
+}