From c9b6b9a5ca082fe7c1b6f58d7713f785a9eb6a5c Mon Sep 17 00:00:00 2001
From: Martial Simon <msimon_fr@hotmail.com>
Date: Mon, 15 Sep 2025 01:08:27 +0200
Subject: add: graphs et rushs

---
 .../forward_multiplication.cc                       |  7 +++++++
 .../forward_multiplication.hh                       |  7 +++++++
 .../forward_multiplication_test.cc                  | 21 +++++++++++++++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 graphs/cpp/forward_multiplication/forward_multiplication.cc
 create mode 100644 graphs/cpp/forward_multiplication/forward_multiplication.hh
 create mode 100644 graphs/cpp/forward_multiplication/forward_multiplication_test.cc

(limited to 'graphs/cpp/forward_multiplication')

diff --git a/graphs/cpp/forward_multiplication/forward_multiplication.cc b/graphs/cpp/forward_multiplication/forward_multiplication.cc
new file mode 100644
index 0000000..72abc91
--- /dev/null
+++ b/graphs/cpp/forward_multiplication/forward_multiplication.cc
@@ -0,0 +1,7 @@
+#include "forward_multiplication.hh"
+//
+// Created by martial.simon on 2/26/25.
+//
+outer_lambda_type mult_by = [](int val) {
+    return [val](int mul) { return val * mul; };
+};
\ No newline at end of file
diff --git a/graphs/cpp/forward_multiplication/forward_multiplication.hh b/graphs/cpp/forward_multiplication/forward_multiplication.hh
new file mode 100644
index 0000000..9cca5e6
--- /dev/null
+++ b/graphs/cpp/forward_multiplication/forward_multiplication.hh
@@ -0,0 +1,7 @@
+#pragma once
+
+#include <functional>
+
+using inner_lambda_type = const std::function<int(int rhs)>;
+using outer_lambda_type = const std::function<inner_lambda_type(int lhs)>;
+extern outer_lambda_type mult_by;
diff --git a/graphs/cpp/forward_multiplication/forward_multiplication_test.cc b/graphs/cpp/forward_multiplication/forward_multiplication_test.cc
new file mode 100644
index 0000000..21be1a6
--- /dev/null
+++ b/graphs/cpp/forward_multiplication/forward_multiplication_test.cc
@@ -0,0 +1,21 @@
+#include <iostream>
+#include <string>
+
+#include "forward_multiplication.hh"
+
+int main(int argc, char** argv)
+{
+    if (argc != 3)
+    {
+        std::cerr << "Usage: " << argv[0] << " 'number' 'number'" << std::endl;
+        return 1;
+    }
+
+    auto lhs = std::stoi(argv[1]);
+    auto rhs = std::stoi(argv[2]);
+
+    auto mult_by_lhs = mult_by(lhs);
+
+    std::cout << mult_by(lhs)(rhs) << '\n';
+    std::cout << mult_by_lhs(rhs) << std::endl;
+}
-- 
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