Insert variable value into a variable name in C - c

Question

I have a type defined e.g.:
typedef enum {
T1,
T2,
T3,
T4,
T5,
T6,
LAST_IN_ENUM
} type1_t;
then another one using the above type e.g.:
typedef enum {
SUB1 = T1,
SUB2 = T2,
SUB3 = T3,
SUB4 = T4
} type2_t;
I would like to use then some fields of type2_t as input parameters to a function, but referring to its last character from a loop variable value, e.g. for SUB2 and SUB3:
for (i=2; i<4; i++) {
function1(SUBi)
}
What I don't know what the proper syntax is to pass the loop variable value to make it up SUBx (the above for loop syntax doe snot work, obviously).
Thanks a lot in advance if you have the solution.
I tried casting, converting to string, none of them worked.

Answer 1

You cant, I am afraid
You can only (if values are consecutive):
void bar(type2_t t2);
void foo(void)
{
for(type2_t t = SUB1; t <= SUB4; t++)
{
bar(t);
}
}
Or if they are not:
typedef enum {
T1 = 5,
T2 = 35,
T3 = 65,
T4 = 999,
T5,
T6,
LAST_IN_ENUM
} type1_t;
typedef enum {
SUB1 = T1,
SUB2 = T2,
SUB3 = T3,
SUB4 = T4
} type2_t;
void bar(type2_t t2);
void foo(void)
{
const type2_t t2Table[] = {SUB1, SUB2, SUB3, SUB4};
for(size_t t = 0; t < sizeof(t2Table) / sizeof(t2Table[0]); t++)
{
bar(t2Table[t]);
}
}