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3 Commits

Author SHA1 Message Date
Jonathan Wakely 89bc4ab198 Define "random_device" effective target 
Currently only matches targets where _GLIBCXX_USE_RANDOM_TR1 is defined,
which means /dev/random and /dev/urandom are usable.

	* testsuite/25_algorithms/make_heap/complexity.cc: Require effective
	target for std::random_device.
	* testsuite/26_numerics/random/random_device/cons/default.cc:
	Likewise.
	* testsuite/experimental/algorithm/sample-2.cc: Likewise.
	* testsuite/experimental/algorithm/shuffle.cc: Likewise.
	* testsuite/experimental/random/randint.cc: Likewise.
	* testsuite/lib/libstdc++.exp
	(check_effective_target_random_device): New proc.

From-SVN: r262415
 2018-07-04 17:56:21 +01:00
David Edelsohn 18338e9eee sample-2.cc: Add TLS DejaGNU directives. 
* testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
        directives.
        * testsuite/experimental/algorithm/shuffle.cc: Likewise.

From-SVN: r262163
 2018-06-26 15:17:08 -04:00
Jonathan Wakely 37cb7887f8 Add experimental::sample and experimental::shuffle from N4531 
The additions to <experimental/random> were added in 2015 but the new
algorithms in <experimental/algorithm> were not. This adds them.

	* include/experimental/algorithm (sample, shuffle): Add new overloads
	using per-thread random number engine.
	* testsuite/experimental/algorithm/sample.cc: Simpify and reduce
	dependencies by using __gnu_test::test_container.
	* testsuite/experimental/algorithm/sample-2.cc: New.
	* testsuite/experimental/algorithm/shuffle.cc: New.

From-SVN: r262024
 2018-06-25 17:23:49 +01:00