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Help! "Too many elements in an ENUM"

 
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dtemplar



Joined: 16 Feb 2004
Posts: 5

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Help! "Too many elements in an ENUM"
PostPosted: Wed Feb 18, 2004 9:20 pm     Reply with quote

Code:

enum  TIMER_CONSTANTS
    {
    TMR1_200us      = 0xFC17,
    TMR1_100us      = 0xFE0B,
    FRC_FAST         = TMR1_100us,
    FRC_SUM          = 1,
    TMR0_5mSEC    = 0xF3C9,
    GEN_1SEC         = 200,
    T_1SEC             = GEN_1SEC,
    T_50mSEC        = 10,
    T_1OOmSEC      = 20,
    };


Why does this code generate the "Too many elements in an ENUM" error?
I don't understand.
Darren Rook



Joined: 06 Sep 2003
Posts: 287
Location: Milwaukee, WI

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PostPosted: Wed Feb 18, 2004 9:40 pm     Reply with quote

TMR1_100us = 0xFE0B,
FRC_FAST = TMR1_100us,

How can one element have the value of the name of another element?
dtemplar



Joined: 16 Feb 2004
Posts: 5

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PostPosted: Wed Feb 18, 2004 11:06 pm     Reply with quote

This is actually a code from a program designed for MCC18 compiler.
Here's the last thing i tried, i removed the comma after the last element and replaced the assigned 16-bit constants (0xFC17, 0xFE0B...) with 8-bit 0x01 and it compiled successfully. It must have problems with enum constants greater than 8-bits. but:

"The id after ENUM is created as a type large enough to the largest constant in the list. The ids in the list are each created as a constant."
(p. 64, CCS C reference manual)

I must have missed something. :(
Darren Rook



Joined: 06 Sep 2003
Posts: 287
Location: Milwaukee, WI

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PostPosted: Thu Feb 19, 2004 8:38 am     Reply with quote

dtemplar wrote:
This is actually a code from a program designed for MCC18 compiler.
Here's the last thing i tried, i removed the comma after the last element and replaced the assigned 16-bit constants (0xFC17, 0xFE0B...) with 8-bit 0x01 and it compiled successfully.


A constant name cannot be a name of an element.

For example, this is bad:

Code:

#define RED=1
/*code*/
enum CODES {RED=5, BLUE=3,GREEN=2};
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