c - 在 C 中定义枚举类型

Question

如何将枚举类型定义为 uint8 而不是 int？

typedef enum
{
  R_DIRECTION_LEFT = 1,
  R_DIRECTION_RIGHT = 2,
  R_DIRECTION_TOP = 4,
  R_DIRECTION_BOTTOM = 8
} R_Direction;

Answer 1

不，你不能。

来自标准§ 6.4.4.3 C11标准N1570

An identifier declared as an enumeration constant has type int.