ali hagigat <hagigatali@xxxxxxxxx> writes: > Are memcmp, memset, and memmove built in? > So a built in function may be in the library or the code I write. right? Yes. > I have used cross compilers for micro controllers for years. They > translate C/Assembly code you write and produce a final object file. > they are not dependent on operating system, system calls or force our > code to be linked with some unknown strange libraries which programmer > does not know about them at all. > > How they work? Professionals like you can implement the same > functionality for gcc without the weak point of adding mem functions. > > It is an idea but I am surprised how you say that it is impossible to > do such a thing. I don't think that I said that it is impossible to do such a thing. If I did, I misspoke, and I apologize for that if in fact I did do it. I think that, rather than saying that doing something else is impossible, I explained why gcc acts the way it does. > Besides gcc is dependent to what? operating system or the architecture > of hardware like Intel chipsets, host bridge and I/O bridge in > addition to CPU? As you know, gcc is generally independent of the host bridge and I/O bridge. It is of course dependent on the CPU itself. It is dependent on the target operating system in a few ways. Ian
