diff --git a/cmake/test/testFloatFromChars.cpp b/cmake/test/testFloatFromChars.cpp
new file mode 100644
index 000000000..859ef3f11
--- /dev/null
+++ b/cmake/test/testFloatFromChars.cpp
@@ -0,0 +1,11 @@
+// CMake feature test for floating-point std::from_chars() support
+
+#include <charconv>
+#include <string_view>
+
+int main()
+{
+    const auto s = std::string_view { "2.71828" };
+    auto e = 0.0;
+    std::from_chars(s.data(), s.data() + s.size(), e);
+}