What's the correct way to add 1 byte to a pointer in C/C++?

Question

I'm using this code to move pointer by 1 byte now, but I'm feeling something unclear..

int* a = (int*)malloc(sizeof(int));
void* b = ((char*)a)+1;   

char is 1 byte, but not defined for byte operation purpose. I believe there's another way to do this byte operation. What's the correct way to byte operation?

PS. I modified sample code to be valid. It's now compiled as C++ with Clang.

Answer 1

I think you are confused:

char is 1 byte, but not defined for byte operation purpose. I believe there's another way to do this byte operation. What's the correct way to byte operation?

What exactly are you expecting byte to mean, if not the exact same thing that char means?

In C and in C++, chars are bytes. By definition. What is not the case is that bytes are necessarily octets. A byte contains at least 8 bits. There is no guarantee that a given platform even makes it possible to reference a chunk of memory that is exactly 8 bits.