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I'm just curious, but can you point me to an implementation of C that doesn't treat (void*)0 as NULL?
by yan 18y ago
I'm just curious, but can you point me to an implementation of C that doesn't treat (void*)0 as NULL?
- qwph 18y ago( void* )0 is NULL, in that NULL is (most usually) #defined to be ( void* )0. But the literal 0 in a pointer context doesn't guarentee that the null pointer is actually all bits zero. To put it another way, if you have a literal zero in a pointer context, the compiler will replace it with the machine's representation of a null pointer, which may or may not be a machine word with all bits zero. I think that's right...