diff options
| -rw-r--r-- | libcxx/test/std/numerics/rand/rand.util/rand.util.canonical/generate_canonical.pass.cpp | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/libcxx/test/std/numerics/rand/rand.util/rand.util.canonical/generate_canonical.pass.cpp b/libcxx/test/std/numerics/rand/rand.util/rand.util.canonical/generate_canonical.pass.cpp index 1693aa28971..b5050a57857 100644 --- a/libcxx/test/std/numerics/rand/rand.util/rand.util.canonical/generate_canonical.pass.cpp +++ b/libcxx/test/std/numerics/rand/rand.util/rand.util.canonical/generate_canonical.pass.cpp @@ -19,85 +19,78 @@ int main(int, char**) { + typedef std::minstd_rand0 E; + auto range = E::max() - E::min(); + { - typedef std::minstd_rand0 E; typedef float F; E r; F f = std::generate_canonical<F, 0>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef float F; E r; F f = std::generate_canonical<F, 1>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef float F; E r; F f = std::generate_canonical<F, std::numeric_limits<F>::digits - 1>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef float F; E r; F f = std::generate_canonical<F, std::numeric_limits<F>::digits>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef float F; E r; F f = std::generate_canonical<F, std::numeric_limits<F>::digits + 1>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef double F; E r; F f = std::generate_canonical<F, 0>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef double F; E r; F f = std::generate_canonical<F, 1>(r); - assert(f == truncate_fp((16807 - E::min()) / (E::max() - E::min() + F(1)))); + assert(f == truncate_fp((16807 - E::min()) / (range + F(1)))); } { - typedef std::minstd_rand0 E; typedef double F; E r; F f = std::generate_canonical<F, std::numeric_limits<F>::digits - 1>(r); assert(f == truncate_fp( (16807 - E::min() + - (282475249 - E::min()) * (E::max() - E::min() + F(1))) / - ((E::max() - E::min() + F(1)) * (E::max() - E::min() + F(1))))); + (282475249 - E::min()) * (range + F(1))) / + ((range + F(1)) * (range + F(1))))); } { - typedef std::minstd_rand0 E; typedef double F; E r; F f = std::generate_canonical<F, std::numeric_limits<F>::digits>(r); assert(f == truncate_fp( (16807 - E::min() + - (282475249 - E::min()) * (E::max() - E::min() + F(1))) / - ((E::max() - E::min() + F(1)) * (E::max() - E::min() + F(1))))); + (282475249 - E::min()) * (range + F(1))) / + ((range + F(1)) * (range + F(1))))); } { - typedef std::minstd_rand0 E; typedef double F; E r; F f = std::generate_canonical<F, std::numeric_limits<F>::digits + 1>(r); assert(f == truncate_fp( (16807 - E::min() + - (282475249 - E::min()) * (E::max() - E::min() + F(1))) / - ((E::max() - E::min() + F(1)) * (E::max() - E::min() + F(1))))); + (282475249 - E::min()) * (range + F(1))) / + ((range + F(1)) * (range + F(1))))); } return 0; |
