Any pitfalls using char* instead of void* when writing cross platform code?

Posted by UberMongoose on Stack Overflow See other posts from Stack Overflow or by UberMongoose
Published on 2012-10-24T04:57:27Z Indexed on 2012/10/24 5:00 UTC
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c++

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pointers

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cross-platform

Is there any pitfalls when using char*'s to write cross platform code that does memory access?

I'm working on a play memory allocator to better understand how to debug memmory issues. I have come to believe char*'s are preferable because of the ability to do pointer arithmetic and derefernce them over void*'s, is that true? Do the following assumptions always hold true on different common platforms?

sizeof(char) == 1
sizeof(char*) == sizeof(void*)
sizeof(char*) == sizeof(size_t)

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