将预处理器添加到Eclipse CDT工具链

Question

Is there a straightforward way to get Eclipse CDT to run the code through a pre-processor before passing through its syntax checker and whatnot to handle auto-correction and in-IDE error checking?

Ideally, if I have a pre-processor that replaces $foo with std::cout , I could then type $foo.flu and then do Ctrl + Space to correctly auto-complete to $foo.flush() .

Would this require hacking/extending CDT internally, or is there is a way to configure an existing toolchain to do this? Even if it correctly identifies that $foo is not a syntax error without auto-completion, that would help.

Of course the code compiles fine (using a CMake script, not the Eclipse builder), but I'd like to be able to get Eclipse to stop showing a million errors without disabling error checking altogether.

Answer 1

Eclipse, as it stands, cannot and will not do this. Other major IDEs follow suit.

The reason for this is because most IDEs ship with a basic or proprietary build system that is meant to integrate seamlessly with the IDE itself.

Most major projects use an IDE almost as an afterthought; code is set up, a dedicated build system is wired up and configured (such as make , cmake , scons , gradle , or my personal favorite, tup ), and then the IDE is brought on to the chain simply as a visual or syntactic aid for a particular developer.

Most (if not all) of the aforementioned build systems support drop-in preprocessors (some are easier than others). Build systems are a dime a dozen and are quite easy to find .