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Fix portability issues in <random> tests. Patch from STL@microsoft.com

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llvm-svn: 276585
This commit is contained in:
Eric Fiselier 2016-07-24 23:36:18 +00:00
parent 307e4216b2
commit 1662951974
4 changed files with 19 additions and 6 deletions
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8
libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle.pass.cpp
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@ -17,6 +17,8 @@
#include <algorithm>
#include <cassert>
#include "test_macros.h"
int main()
{
int ia[] = {1, 2, 3, 4};
@ -24,7 +26,9 @@ int main()
int ia2[] = {4, 1, 2, 3};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
std::random_shuffle(ia, ia+sa);
assert(std::equal(ia, ia+sa, ia1));
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia1));
assert(std::is_permutation(ia, ia+sa, ia1));
std::random_shuffle(ia, ia+sa);
assert(std::equal(ia, ia+sa, ia2));
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia2));
assert(std::is_permutation(ia, ia+sa, ia2));
}

5
libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_rand.pass.cpp
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@ -18,6 +18,8 @@
#include <algorithm>
#include <cassert>
#include "test_macros.h"
struct gen
{
int operator()(int n)
@ -33,5 +35,6 @@ int main()
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
gen r;
std::random_shuffle(ia, ia+sa, r);
assert(std::equal(ia, ia+sa, ia1));
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia1));
assert(std::is_permutation(ia, ia+sa, ia1));
}

8
libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_urng.pass.cpp
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@ -17,6 +17,8 @@
#include <random>
#include <cassert>
#include "test_macros.h"
int main()
{
int ia[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
@ -25,7 +27,9 @@ int main()
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
std::minstd_rand g;
std::shuffle(ia, ia+sa, g);
assert(std::equal(ia, ia+sa, ia1));
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia1));
assert(std::is_permutation(ia, ia+sa, ia1));
std::shuffle(ia, ia+sa, g);
assert(std::equal(ia, ia+sa, ia2));
LIBCPP_ASSERT(std::equal(ia, ia+sa, ia2));
assert(std::is_permutation(ia, ia+sa, ia2));
}

4
libcxx/test/std/numerics/rand/rand.predef/default_random_engine.pass.cpp
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@ -14,9 +14,11 @@
#include <random>
#include <cassert>
#include "test_macros.h"
int main()
{
std::default_random_engine e;
e.discard(9999);
assert(e() == 399268537u);
LIBCPP_ASSERT(e() == 399268537u);
}