intermediate commit

Signed-off-by: Folling <mail@folling.io>

src/values/value.cpp

@@ -0,0 +1,31 @@
+#include "ikarus/values/value.h"
+
+#include <fmt/format.h>
+
+#include <cppbase/templates.hpp>
+
+#include <values/number_value.hpp>
+#include <values/text_value.hpp>
+#include <values/toggle_value.hpp>
+#include <values/value.hpp>
+
+bool ikarus_value_is_indeterminate(IkarusValue const * value) {
+    return value->indeterminate;
+}
+
+char const * ikarus_value_to_string(IkarusValue const * value) {
+    auto str = std::visit(
+        cppbase::overloaded{
+            [](IkarusToggleValue const * toggle_value) -> std::string { return toggle_value->value ? "true" : "false"; },
+            [](IkarusNumberValue const * number_value) -> std::string { return fmt::format("{}", number_value->value); },
+            [](IkarusTextValue const * text_value) -> std::string { return fmt::format("{}", text_value->value); },
+        },
+        value->data
+    );
+
+    char * ret = new char[str.size() + 1];
+
+    std::strncpy(ret, str.data(), str.size() + 1);
+
+    return ret;
+}