Attempts to do that have been very low sales, and the gcc compiler writers don't see it as being worth the bother to write a handicapped C++. That by itself can be very useful for people who are unfamiliar with C. That is what I've been telling you all along.
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It is just using the syntax and a few features that don't create code bloat. You just do what the hardware allows or is most efficient at.Īs you have read from the link I provided, the arduino isn't implementing the vast majority of C++. The sparc architecture had rotating sets of registers that made context switching much faster if you used the register banks instead of the stack, so compilers that used that hardware feature ran a bit faster than ones who pushed to the stack. That doesn't mean that if you write the compiler a different way that they will come and get you. The cpu architecture doesn't limit what HLL can be implemented, it is the amount of resources like ram that create the problem.Ĭ and a bunch of other languages were classically defined to use stack, and pascal and some of its friends used register based passing. It's not C or C++, it's a new language of "sketch" which boils down to C. That was the whole concept of arduino, to abstract the system to such a high level that you don't need to know all the nitty-gritty details. The "sketches" that people use on the arduino aren't really C or C++, it's interpreted to make it friendly. It's lean, and so are the resources available. The general rule is, if you want to do the small processors, learn asm and C. Many embedded programmers are coming out of the desktop world where they seldom think about wasted megabytes, but that is a lot of memory for a pic24, so you need to watch how you use it.
They need to know the compiler is limited due to the limitations of the resources available. I do agree that there is a new generation of programmers who don't know C and would feel more comfortable with C++ syntax. Obviously, none of the C++ related standard functions, classes, and template classes are available.
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Arduino may not be the most shining example of how to use the language, but that's how many millions of 8-bit MCUs happily running C++?