diff options
Diffstat (limited to 'test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp')
-rw-r--r-- | test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp new file mode 100644 index 000000000000..bc4494b9848e --- /dev/null +++ b/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp @@ -0,0 +1,81 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <random> + +// template<class IntType = int> +// class discrete_distribution + +// discrete_distribution(initializer_list<double> wl); + +#include <random> +#include <cassert> + +int main() +{ +#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS + { + typedef std::discrete_distribution<> D; + D d = {}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 1); + assert(p[0] == 1); + } + { + typedef std::discrete_distribution<> D; + D d = {10}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 1); + assert(p[0] == 1); + } + { + typedef std::discrete_distribution<> D; + D d = {10, 30}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 2); + assert(p[0] == 0.25); + assert(p[1] == 0.75); + } + { + typedef std::discrete_distribution<> D; + D d = {30, 10}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 2); + assert(p[0] == 0.75); + assert(p[1] == 0.25); + } + { + typedef std::discrete_distribution<> D; + D d = {30, 0, 10}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 3); + assert(p[0] == 0.75); + assert(p[1] == 0); + assert(p[2] == 0.25); + } + { + typedef std::discrete_distribution<> D; + D d = {0, 30, 10}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 3); + assert(p[0] == 0); + assert(p[1] == 0.75); + assert(p[2] == 0.25); + } + { + typedef std::discrete_distribution<> D; + D d = {0, 0, 10}; + std::vector<double> p = d.probabilities(); + assert(p.size() == 3); + assert(p[0] == 0); + assert(p[1] == 0); + assert(p[2] == 1); + } +#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS +} |