Rule 19.15 #include ssyntax, bad name

[mshearer123]

Hi,

My header files all include #ifndef / #define 's to stop them being included twice, however apparently the name is bad.

i have things like
#ifndef __DMA_h
#define __DMA_h
#endif


and

#ifndef __flash_h
#define __flash_h
#endif

Also changing to the following gives the same error

#ifndef flash_h
#define flash_h
#endif

any help would be great,

Matt