Structure - Typedef accessing problem

Hi,

Code:

---

typedef enum RelationalOperators  {EQ, NE, GT, LT} Rel_Op;

---

Code:

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typedef union TokenAttribute{
        Rel_Op rel_op; 
  } TA;

---

Code:

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typedef struct Token
{
        TA attribute;
} Token;

---

Code:

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token temp;

temp.attribute.rel_op[0];          /*error*/

---

i am trying to access the EQ, NE, GT, and LT to do certain operations afterwards - but cant seem to get the syntax right...

<<threads merged>>

Code:

---

typedef enum RelationalOperators  {EQ, NE, GT, LT} Rel_Op;


typedef union TokenAttribute{
        Rel_Op rel_op; 
  } TA;

typedef struct Token
{
        TA attribute; /* token attribute */
} Token;

---

Code:

---

Token temp;
temp.attribute.rel_op[0];      /*error*/

---

I have been trying ti access the rel_op as i need to compare the content...but cant seem to get the syntax right...

Code:

---

if (temp.attribute.rel_op == EQ)

---

will test if the enum contains a particular value. The left hand side of the comparison accesses the value in your variable.

rel_op isn't an array, and you're trying to use it like one. Maybe you should just use an array instead of an enum?

Honestly it's a little hard to give advice, since I can't tell what you're really trying to do.

> typedef union TokenAttribute
Is there something you're not telling us, because a union with only one member is a struct.