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authorStephen G Lynn <106975034+steve-g-lynn@users.noreply.github.com>2022-06-29 16:53:59 +0800
committerGitHub <noreply@github.com>2022-06-29 16:53:59 +0800
commitdaeaac8b512d72afd6af1b3b8c69957cdfe38229 (patch)
tree011e8614fefbcb4f786dddd652053dda77d29acb /challenge-171/deadmarshal/cpp/ch-2.cpp
parent0b1a30a759281f722327a2ebcbff21945874f4f2 (diff)
parentb49e224badd23b5debbc5bf8254ef26ea8e8e2b4 (diff)
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Merge branch 'manwar:master' into branch-for-challenge-171
Diffstat (limited to 'challenge-171/deadmarshal/cpp/ch-2.cpp')
-rw-r--r--challenge-171/deadmarshal/cpp/ch-2.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/challenge-171/deadmarshal/cpp/ch-2.cpp b/challenge-171/deadmarshal/cpp/ch-2.cpp
new file mode 100644
index 0000000000..ff23f617ed
--- /dev/null
+++ b/challenge-171/deadmarshal/cpp/ch-2.cpp
@@ -0,0 +1,17 @@
+#include<iostream>
+#include<functional>
+
+std::function<int(int)> f = [](auto n){return n + 2;};
+std::function<int(int)> g = [](auto n){return n * 2;};
+
+template<typename F, typename G>
+auto compose(F f, G g)
+{
+ return [f,g](auto n){return f(g(n));};
+}
+
+int main()
+{
+ std::cout << compose(f, g)(5) << '\n';
+ return 0;
+}