[cfe-dev] Can we make libcxx headers more modular for faster compilation?

[Yaron Keren]

For example, including iostream also includes:

iostream:38:
ios:216:
__locale:15:
string:439:
algorithm:627:
memory:603:
tuple

That's tons of baggage which slows down compilation significantly.
I guess that using std::cout does not really requires tuples.

Is it possible to break up the header files into smaller parts so that
including a header file only include the other parts it really needs rather
than the entire chain of includes as in above?

Yaron
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