Description

hobala

opened on Aug 7, 2023

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cppcheck 2.11 throws this error with the following code (Atmel ASF):

[FILE_LOCATION/ASF/common/utils/parts.h:63] (error) failed to expand 'SAM', Invalid ## usage when expanding 'SAM_PART_IS_DEFINED': Unexpected token ')' [preprocessorErrorDirective]

I think this is an error of simplecpp!

/* ! Check GCC and IAR part definition for 8-bit AVR */
#define AVR8_PART_IS_DEFINED(part) \\
	(defined(__ ## part ## __) || defined(__AVR_ ## part ## __))

/* ! Check GCC and IAR part definition for 32-bit AVR */
#define AVR32_PART_IS_DEFINED(part) \\
	(defined(__AT32 ## part ## __) || defined(__AVR32_ ## part ## __))

/* ! Check GCC and IAR part definition for SAM */
#define SAM_PART_IS_DEFINED(part) (defined(__ ## part ## __))
// ^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/** @} */

Activity

1. LorandMarton commented on Jan 6, 2024

   

   LorandMarton

   on Jan 6, 2024

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   I also encounter the same problem.
2. damorinCan commented on Jan 18, 2025

   

   damorinCan

   on Jan 18, 2025

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   Got the same issue when using cppcheck. Here some test code:

   #define AX  (A.X)
   #define AX2 (A.X2)
   
   #define Called(param)   do { param++; } while( 0 )
   #define Calling(param)  do { Called(param##2); while( 0 )
   
   typedef struct
   {
      int X;
      int X2;
   } SomeStruct;
   
   int test( void )
   {
      SomeStruct A;
   
      AX = 0;
      Calling(AX);
      return AX;
   }
   
   

   gcc -E:

   typedef struct
   {
      int X;
      int X2;
   } SomeStruct;
   
   int test( void )
   {
      SomeStruct A;
   
      (A.X) = 0;
      do { do { (A.X2)++; } while( 0 ); while( 0 );
      return (A.X);
   }
   

   simplecheck:
   ../cppcheck/abc.c:5: syntax error: failed to expand 'Calling', Invalid ## usage when expanding 'Calling': Unexpected token ')'
3. firewave

   added

   bug

   on Aug 28, 2025

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