title: How do i open Visual Studio 2019 c++ code in Visual Studio 2017 without errors?
body: <p>When i try to open my project created in VS2019 containing the code below in VS2017 i get errors saying that identifiers &quot;setlocale&quot;, &quot;strand&quot;, &quot;system&quot;, &quot;free&quot;, &quot;realloc&quot;, &quot;malloc&quot;, &quot;rand&quot; are undefined. How can i configure my project in VS2019 to be backward compatible with VS2017 compiler?</p>
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