C语言中基于自定义枚举值实现高效分支处理的通用方案问询

我平时经常要处理C语言里枚举的功能，但在我的场景下，好像找不到一种既简单又高效的方式，能根据预定义的枚举值返回不同的结果。就拿下面这段代码举例：

/**
 * @brief An enumerator to represent all the various numerical types that
 * can be stored in the @ref dynamic_array_number_t. This is simply a list
 * of the various integer types that can fit into a signed 64-bit integer.
 */
typedef enum
{
    /**
     * @brief Unsigned 8-bit integer.
     */
    unsigned8,
    /**
     * @brief Unsigned 16-bit integer.
     */
    unsigned16,
    /**
     * @brief Unsigned 32-bit integer.
     */
    unsigned32,
    /**
     * @brief Signed 8-bit integer.
     */
    signed8,
    /**
     * @brief Signed 16-bit integer.
     */
    signed16,
    /**
     * @brief Signed 32-bit integer.
     */
    signed32
} dynamic_array_number_type_t;

备注：内容来源于stack exchange，提问作者Zenais