Function config_key_to_string

src/Configuration.cpp:64–78

namespace CoolProp {

std::string config_key_to_string(configuration_keys keys) {
    switch (keys) {
        /* ***MAGIC WARNING**!!
         * See http://stackoverflow.com/a/148610
         * See http://stackoverflow.com/questions/147267/easy-way-to-use-variables-of-enum-types-as-string-in-c#202511
         */
#define X(Enum, String, Default, Desc) \
    case Enum:                         \
        return String;                 \
        break;
        CONFIGURATION_KEYS_ENUM
#undef X
    }
    return "";  // will never get here, just to make compiler happy
};

std::string config_key_description(configuration_keys keys) {
    switch (keys) {