/technologies/code_exchange/b/blog/posts/modern-c-modules-convert-existing-example-from-h-to-moduleI&#39;m experimenting with new C++ constructs. In C++ callbacks and templates , I developed a generic object oriented callback handler using templates.In modern C++ modules I tried out an example that uses C++ modules...en-USTelligent Community 12https://community.element14.com/technologies/code_exchange/b/blog/posts/modern-c-modules-convert-existing-example-from-h-to-moduleSat, 08 Feb 2025 18:52:25 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4bba44c6-4c40-4a99-98ef-8303509171f3DAB0<p>Nice post Jan.</p><img src="https://community.element14.com/aggbug?PostID=28696&AppID=74&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/technologies/code_exchange/b/blog/posts/modern-c-modules-convert-existing-example-from-h-to-moduleSat, 08 Feb 2025 18:00:50 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4bba44c6-4c40-4a99-98ef-8303509171f3Jan Cumps0<p>I used an object&#39;s method as callback handler in the example. But you can as well use a standard c type function. Here&#39;s an example</p> <p>[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:34a44791-dee8-4040-bbb9-7c52727e6ba4:type=c_cpp&text=int%20functionHandler%28const%20int%26%20num1%2C%20const%20int%26%20num2%29%20%7B%0A%20%20%20%20return%20num1%20%2B%20num2%3B%0A%7D%0A%0Aint%20main%28%29%20%7B%0A%0A%20%20%20%20int%20a%20%3D%204%3B%0A%20%20%20%20int%20b%20%3D%205%3B%0A%0A%09%2F%2F%20scenario%3A%20call%20C%20function%0A%09callbackmanager%3A%3ACallback%3Cint%2C%20const%20int%26%2C%20const%20int%26%3E%20cb%3B%0A%20%20%20%20%2F%2F%20Use%20a%20lambda%20to%20call%20the%20classic%20C%20function%0A%20%20%20%20cb.set%28%5B%5D%28const%20int%26%20num1%2C%20const%20int%26%20num2%29%20-%3E%20int%20%7B%0A%20%20%20%20%20%20%20%20return%20functionHandler%28num1%2C%20num2%29%3B%0A%20%20%20%20%7D%29%3B%0A%0A%20%20%20%20int%20o%20%3D%20cb.call%28a%2C%20b%29%3B%0A%20%20%20%20printf%28%22Value%3A%20%25i%5Cn%22%2C%20o%29%3B%0A%09fflush%28stdout%29%3B]</p> <p>It calls function&nbsp;<span>functionHandler().&nbsp;</span></p> <p><span>You an also use it to call plain c code that&#39;s not in a function (a lambda). See all options in&nbsp;&nbsp;[mention:5b356e0658814266b1c94f99fba9084c:46448885d0e64133bbfbf0cd7b0fd6f7]&nbsp;</span><span>.</span></p><img src="https://community.element14.com/aggbug?PostID=28696&AppID=74&AppType=Weblog&ContentType=0" width="1" height="1">