+//===-- flang/unittests/Runtime/Complex.cpp ---------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+#include "gmock/gmock.h"
+#include "gtest/gtest-matchers.h"
+#include <limits>
+
+#ifdef __clang__
+#pragma clang diagnostic ignored "-Wc99-extensions"
+#endif
+
+#include "flang/Common/Fortran.h"
+#include "flang/Runtime/cpp-type.h"
+#include "flang/Runtime/entry-names.h"
+
+#include <complex>
+#include <cstdint>
+
+#ifndef _MSC_VER
+#include <complex.h>
+typedef float _Complex float_Complex_t;
+typedef double _Complex double_Complex_t;
+#else
+struct float_Complex_t {
+ float re;
+ float im;
+};
+struct double_Complex_t {
+ double re;
+ double im;
+};
+#endif
+
+extern "C" float_Complex_t RTNAME(cpowi)(
+ float_Complex_t base, std::int32_t exp);
+
+extern "C" double_Complex_t RTNAME(zpowi)(
+ double_Complex_t base, std::int32_t exp);
+
+extern "C" float_Complex_t RTNAME(cpowk)(
+ float_Complex_t base, std::int64_t exp);
+
+extern "C" double_Complex_t RTNAME(zpowk)(
+ double_Complex_t base, std::int64_t exp);
+
+static std::complex<float> cpowi(std::complex<float> base, std::int32_t exp) {
+ float_Complex_t cbase{*(float_Complex_t *)(&base)};
+ float_Complex_t cres{RTNAME(cpowi)(cbase, exp)};
+ return *(std::complex<float> *)(&cres);
+}
+
+static std::complex<double> zpowi(std::complex<double> base, std::int32_t exp) {
+ double_Complex_t cbase{*(double_Complex_t *)(&base)};
+ double_Complex_t cres{RTNAME(zpowi)(cbase, exp)};
+ return *(std::complex<double> *)(&cres);
+}
+
+static std::complex<float> cpowk(std::complex<float> base, std::int64_t exp) {
+ float_Complex_t cbase{*(float_Complex_t *)(&base)};
+ float_Complex_t cres{RTNAME(cpowk)(cbase, exp)};
+ return *(std::complex<float> *)(&cres);
+}
+
+static std::complex<double> zpowk(std::complex<double> base, std::int64_t exp) {
+ double_Complex_t cbase{*(double_Complex_t *)(&base)};
+ double_Complex_t cres{RTNAME(zpowk)(cbase, exp)};
+ return *(std::complex<double> *)(&cres);
+}
+
+MATCHER_P(ExpectComplexFloatEq, c, "") {
+ using namespace testing;
+ return ExplainMatchResult(
+ AllOf(Property(&std::complex<float>::real, FloatEq(c.real())),
+ Property(&std::complex<float>::imag, FloatEq(c.imag()))),
+ arg, result_listener);
+}
+
+MATCHER_P(ExpectComplexDoubleEq, c, "") {
+ using namespace testing;
+ return ExplainMatchResult(AllOf(Property(&std::complex<double>::real,
+ DoubleNear(c.real(), 0.00000001)),
+ Property(&std::complex<double>::imag,
+ DoubleNear(c.imag(), 0.00000001))),
+ arg, result_listener);
+}
+
+#define EXPECT_COMPLEX_FLOAT_EQ(val1, val2) \
+ EXPECT_THAT(val1, ExpectComplexFloatEq(val2))
+
+#define EXPECT_COMPLEX_DOUBLE_EQ(val1, val2) \
+ EXPECT_THAT(val1, ExpectComplexDoubleEq(val2))
+
+using namespace std::literals::complex_literals;
+
+TEST(Complex, cpowi) {
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(3.f + 4if, 0), 1.f + 0if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(3.f + 4if, 1), 3.f + 4if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(3.f + 4if, 2), -7.f + 24if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(3.f + 4if, 3), -117.f + 44if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(3.f + 4if, 4), -527.f - 336if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(3.f + 4if, -2), -0.0112f - 0.0384if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(2.f + 1if, 10), -237.f - 3116if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(0.5f + 0.6if, -10), -9.322937f - 7.2984829if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(2.f + 1if, 5), -38.f + 41if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowi(0.5f + 0.6if, -5), -1.121837f + 3.252915if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(
+ cpowi(0.f + 1if, std::numeric_limits<std::int32_t>::min()), 1.f + 0if);
+}
+
+TEST(Complex, cpowk) {
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(3.f + 4if, 0), 1.f + 0if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(3.f + 4if, 1), 3.f + 4if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(3.f + 4if, 2), -7.f + 24if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(3.f + 4if, 3), -117.f + 44if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(3.f + 4if, 4), -527.f - 336if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(3.f + 4if, -2), -0.0112f - 0.0384if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(2.f + 1if, 10), -237.f - 3116if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(0.5f + 0.6if, -10), -9.322937f - 7.2984829if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(2.f + 1if, 5), -38.f + 41if);
+ EXPECT_COMPLEX_FLOAT_EQ(cpowk(0.5f + 0.6if, -5), -1.121837f + 3.252915if);
+
+ EXPECT_COMPLEX_FLOAT_EQ(
+ cpowk(0.f + 1if, std::numeric_limits<std::int64_t>::min()), 1.f + 0if);
+}
+
+TEST(Complex, zpowi) {
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(3. + 4i, 0), 1. + 0i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(3. + 4i, 1), 3. + 4i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(3. + 4i, 2), -7. + 24i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(3. + 4i, 3), -117. + 44i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(3. + 4i, 4), -527. - 336i);
+
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(3. + 4i, -2), -0.0112 - 0.0384i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(2. + 1i, 10), -237. - 3116i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(0.5 + 0.6i, -10), -9.32293628 - 7.29848564i);
+
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(2. + 1i, 5), -38. + 41i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowi(0.5 + 0.6i, -5), -1.12183773 + 3.25291503i);
+
+ EXPECT_COMPLEX_DOUBLE_EQ(
+ zpowi(0. + 1i, std::numeric_limits<std::int32_t>::min()), 1. + 0i);
+}
+
+TEST(Complex, zpowk) {
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(3. + 4i, 0), 1. + 0i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(3. + 4i, 1), 3. + 4i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(3. + 4i, 2), -7. + 24i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(3. + 4i, 3), -117. + 44i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(3. + 4i, 4), -527. - 336i);
+
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(3. + 4i, -2), -0.0112 - 0.0384i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(2. + 1i, 10), -237. - 3116i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(0.5 + 0.6i, -10), -9.32293628 - 7.29848564i);
+
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(2. + 1i, 5l), -38. + 41i);
+ EXPECT_COMPLEX_DOUBLE_EQ(zpowk(0.5 + 0.6i, -5), -1.12183773 + 3.25291503i);
+
+ EXPECT_COMPLEX_DOUBLE_EQ(
+ zpowk(0. + 1i, std::numeric_limits<std::int64_t>::min()), 1. + 0i);
+}