How to define an enumerated type (enum) in C?

Question

I'm not sure what is the proper syntax for using C enums. I have the following code: enum {RANDOM, IMMEDIATE, SEARCH} strategy; strategy = IMMEDIATE;But this does not compile, with the following error: error: conflicting types for ‘strategy’ error: previous declaration of ‘strategy’ was hereWhat am I doing wrong?

Answer 1

strategy is a type, so you cannot use it as a variable name....

here is code that works:

#include <stdio.h>

typedef enum _TStrategy

{

RANDOM, //0

IMMEDIATE, //1

SEARCH //2

} TStrategy;

int main()

{

TStrategy myStrategy = RANDOM;

TStrategy theStrategy = IMMEDIATE;

TStrategy aStrategy = SEARCH;

printf(" Strategy values : %d %d %d \n",myStrategy, theStrategy, aStrategy);

}

--------------------------------------------

Note that you are allowed to change the first value of the enum :

typedef enum _TStrategy

{

RANDOM=2, //2

IMMEDIATE, //3

SEARCH //4

} TStrategy;

The output will then show 2, 3, and 4