hooh pxw writes:
ghc can be "alternative" C ? Say that, linux device driver developing, or low-level/independent GUI programming.
[list of extension to the Linux kernel]
these project written in c, Is it can be replaced by GHC(*.lhs)?
No. None of the functional programming languages are competitive with procedural languages in programming of traditional kernels. This is because such programming requires finer control over memory and cpu cycles than GHC gives you and because a large part of such programming is designing and using very efficient interfaces to other parts of the operating system. GHC code can interface with C code, but not as efficiently or as flexibly as C or C++ code can interface with C code. An example of where GHC does not give you enough control over memory and cpu resources is that the code generated by GHC uses heap storage managed by a garbage collector. I doubt that the Linux kernel has a garbage collector now or that adding one would be a good idea.