vendor/libc++/libc++-release_370-r246257

1 files changed, 159 insertions, 0 deletions

diff --git a/test/std/numerics/complex.number/complex.ops/complex_divide_complex.pass.cpp b/test/std/numerics/complex.number/complex.ops/complex_divide_complex.pass.cpp
new file mode 100644
index 000000000000..86119678aa70
--- /dev/null
+++ b/test/std/numerics/complex.number/complex.ops/complex_divide_complex.pass.cpp
@@ -0,0 +1,159 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <complex>
+
+// template<class T>
+//   complex<T>
+//   operator/(const complex<T>& lhs, const complex<T>& rhs);
+
+#include <complex>
+#include <cassert>
+
+#include "../cases.h"
+
+template <class T>
+void
+test(const std::complex<T>& lhs, const std::complex<T>& rhs, std::complex<T> x)
+{
+    assert(lhs / rhs == x);
+}
+
+template <class T>
+void
+test()
+{
+    std::complex<T> lhs(-4.0, 7.5);
+    std::complex<T> rhs(1.5, 2.5);
+    std::complex<T>   x(1.5, 2.5);
+    test(lhs, rhs, x);
+}
+
+void test_edges()
+{
+    const unsigned N = sizeof(x) / sizeof(x[0]);
+    for (unsigned i = 0; i < N; ++i)
+    {
+        for (unsigned j = 0; j < N; ++j)
+        {
+            std::complex<double> r = x[i] / x[j];
+            switch (classify(x[i]))
+            {
+            case zero:
+                switch (classify(x[j]))
+                {
+                case zero:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero:
+                    assert(classify(r) == zero);
+                    break;
+                case inf:
+                    assert(classify(r) == zero);
+                    break;
+                case NaN:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero_nan:
+                    assert(classify(r) == NaN);
+                    break;
+                }
+                break;
+            case non_zero:
+                switch (classify(x[j]))
+                {
+                case zero:
+                    assert(classify(r) == inf);
+                    break;
+                case non_zero:
+                    assert(classify(r) == non_zero);
+                    break;
+                case inf:
+                    assert(classify(r) == zero);
+                    break;
+                case NaN:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero_nan:
+                    assert(classify(r) == NaN);
+                    break;
+                }
+                break;
+            case inf:
+                switch (classify(x[j]))
+                {
+                case zero:
+                    assert(classify(r) == inf);
+                    break;
+                case non_zero:
+                    assert(classify(r) == inf);
+                    break;
+                case inf:
+                    assert(classify(r) == NaN);
+                    break;
+                case NaN:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero_nan:
+                    assert(classify(r) == NaN);
+                    break;
+                }
+                break;
+            case NaN:
+                switch (classify(x[j]))
+                {
+                case zero:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero:
+                    assert(classify(r) == NaN);
+                    break;
+                case inf:
+                    assert(classify(r) == NaN);
+                    break;
+                case NaN:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero_nan:
+                    assert(classify(r) == NaN);
+                    break;
+                }
+                break;
+            case non_zero_nan:
+                switch (classify(x[j]))
+                {
+                case zero:
+                    assert(classify(r) == inf);
+                    break;
+                case non_zero:
+                    assert(classify(r) == NaN);
+                    break;
+                case inf:
+                    assert(classify(r) == NaN);
+                    break;
+                case NaN:
+                    assert(classify(r) == NaN);
+                    break;
+                case non_zero_nan:
+                    assert(classify(r) == NaN);
+                    break;
+                }
+                break;
+            }
+        }
+    }
+}
+
+int main()
+{
+    test<float>();
+    test<double>();
+    test<long double>();
+    test_edges();
+}