> the targets where you would want to use this can't run the libcxx
testsuite anyway (because they don't have an operating system to run the
test programs under).
I used to run libcxx tests for an arm baremetal toolchain I was building
via semihosted QEMU. It was awkward and slow (especially for
We can wrap the random_device as a minstd_rand, a linear congruential
enginer that a lot of C lib uses for rand().
However based on documentation, we should just provides dummy
implementation which throws an exception in the constructor of
random_device [1,2]
But again, compared with run-time ex
