Skip to main content
Renesas Electronics Europe - Knowledgebase

W0520301 message(CC-RL)

Last Updated:06/212017


I am using RL78 Compiler CC-RL.
Although I have defined typedef at only one location, the following W0520301 message is output.
Can you tell me a probable cause for this?

"W0520301: typedef name has already been declared (with same type)."


Confirm that the file in which typedef has been defined is not included by other files.

The corresponding definition might be subject to compilation more than once because multiple files might include the file and the inclusion is nested.

Suitable Products
e² studio
CS+ (formerly CubeSuite+)
C Compiler Package for RL78 Family
  • Was this article helpful?