我不确定使用C枚举的正确语法是什么.我有以下代码:
enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy = IMMEDIATE;
但这不会编译，出现以下错误:
error: conflicting types for ‘strategy’
error: previous declaration of ‘strategy’ was here
我做错了什么？
我不确定使用C枚举的正确语法是什么.我有以下代码:
enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy = IMMEDIATE;
但这不会编译，出现以下错误:
error: conflicting types for ‘strategy’
error: previous declaration of ‘strategy’ was here
我做错了什么？
声明枚举变量的过程如下所示:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
但是，可以使用typedef来缩短变量声明，如下所示:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy my_strategy = IMMEDIATE;
使用命名约定来区分类型和变量是个好主意:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strategy_type;
strategy_type my_strategy = IMMEDIATE;