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RENESAS TOOL NEWS on December 1, 2004: RSO-TM-041201D
A Note on Using
Integrated Development Environment TM
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Please take note of the following problem in using the TM, an integrated development environment:
- Products and Versions Concerned
TM V.3.00 through 3.20 used in any of the following C compiler packages:
- M3T-NC308WA V.3.00 Release1 and later
(for the M32C/90, M32C/80 and M16C/80 series of MCUs)
- M3T-NC30WA V.4.00 Release1 and later
(for the M16C/60, M16C/30, M16C/Tiny, M16C/20 M16C/10 and R8C/Tiny series of MCUs)
- Description
If a source file in a project contains an enum-type variable declared
using typedef, the inspector is abnormally shut down as soon as it is
invoked.
- Conditions
This problem occurs if the following conditions are all satisfied:
| (1) | This problem occurs if the following conditions are all satisfied: |
| (2) |
The type name defined in (1) is re-defined as another using typedef. |
| (3) |
Another variable is defined using the type name re-defined in (2). |
Example:
----------------------------------------------------------------------
typedef enum _NUMBER{ NUM_0,NUM_1,NUM_2} NUMBER; /* Condition (1) */
typedef NUMBER NUM; /* Condition (2) */
NUM number; /* Condition (3) */
----------------------------------------------------------------------
- Workaround
This problem can be circumvented either of the following ways:
| (1) |
Don't use the type name of an enumeration type defined using typedef.
Example:
------------------------------------------------------------------
typedef enum _NUMBER{ NUM_0,NUM_1,NUM_2} NUMBER;
typedef enum _NUMBER NUM; /* Type name of enum type
defined using typedef */
NUM number; /* NUMBER not used */
------------------------------------------------------------------ |
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| (2) |
Don't re-define the type name of an enum-type variable as another using typedef.
Example:
------------------------------------------------------------------
typedef enum _NUMBER{ NUM_0,NUM_1,NUM_2} NUMBER;
/* typedef NUMBER NUM; */
/* NUM number; */
NUMBER number;
------------------------------------------------------------------ |
- Schedule of Fixing the Problem
We plan to fix this problem in our next release of the product.
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