c - Redefine value from enum -


i have code defined in 3rd party library i'm using:

typedef enum {    state_initial  = 0,    state_load     = 1,    state_read     = 2,    state_finish   = 3 } state_t;

i re-define value of state_finish. however, don't want mess library, , @ same time can't way in code:

#undef state_finish #define state_finish 2

is there way?

first of all, #undef not have effect. works on names have been #defined. should leave out.

second, #define state_finish 2 have effect seem want. must sure used in cases header #included. otherwise, value used in program state_finish inconsistent. must #define after #include. if before, substitution in header file, change enum definition incorrect

typedef enum {    state_initial  = 0,    state_load     = 1,    state_read     = 2,    2   = 3 /* or state_read = 3, other variant; wrong */ } state_t;

now combining these warnings order: can't guaranteed right. if re-#define after #include, maybe code inside header files has used state_finish, not have been replaced. depending on want, may wrong.

next, sure want this? why? , don't perhaps mean #define state_finish state_read instead? difference seems subtle, expressing mean.

maybe mean more #define my_own_state state_read? if use own invented name state, cause less confusion true meaning of state_finish. expresses fact can't change value of state_finish used within library (which hope realised, of course).


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