[C] syntax error

[Bughunter]

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void *pHeader = (void*)((unsigned long)ptr - HEADERSIZE);

This line is giving me an error telling me this:
"error: syntax error before ';' token"

Can anyone tell me what is wrong?

EDIT: Found it:

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#define HEADERSIZE sizeof(unsigned int);

This gave the error, it should be:

Code: Select all

#define HEADERSIZE sizeof(unsigned int)