libc/test/src/complex/CRealTest.h

   1 //===-- Utility class to test different flavors of creal --------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_TEST_SRC_COMPLEX_CREALTEST_H
  10 #define LLVM_LIBC_TEST_SRC_COMPLEX_CREALTEST_H
  11
  12 #include "test/UnitTest/FEnvSafeTest.h"
  13 #include "test/UnitTest/FPMatcher.h"
  14 #include "test/UnitTest/Test.h"
  15
  16 #include "hdr/math_macros.h"
  17
  18 template <typename CFPT, typename FPT>
  19 class CRealTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
  20
  21   DECLARE_SPECIAL_CONSTANTS(FPT)
  22
  23 public:
  24   typedef FPT (*CRealFunc)(CFPT);
  25
  26   void testSpecialNumbers(CRealFunc func) {
  27     EXPECT_FP_EQ(func(CFPT(aNaN + 67.123i)), aNaN);
  28     EXPECT_FP_EQ(func(CFPT(neg_aNaN + 78.319i)), neg_aNaN);
  29     EXPECT_FP_EQ(func(CFPT(sNaN + 7813.131i)), sNaN);
  30     EXPECT_FP_EQ(func(CFPT(neg_sNaN + 7824.152i)), neg_sNaN);
  31     EXPECT_FP_EQ(func(CFPT(inf + 9024.2442i)), inf);
  32     EXPECT_FP_EQ(func(CFPT(neg_inf + 8923.124i)), neg_inf);
  33     EXPECT_FP_EQ(func(CFPT(min_normal + 782.124i)), min_normal);
  34     EXPECT_FP_EQ(func(CFPT(max_normal + 2141.2352i)), max_normal);
  35     EXPECT_FP_EQ(func(CFPT(neg_max_normal + 341.134i)), neg_max_normal);
  36     EXPECT_FP_EQ(func(CFPT(min_denormal + 781.142i)), min_denormal);
  37     EXPECT_FP_EQ(func(CFPT(neg_min_denormal + 781.134i)), neg_min_denormal);
  38     EXPECT_FP_EQ(func(CFPT(max_denormal + 1241.112i)), max_denormal);
  39     EXPECT_FP_EQ(func(CFPT(zero + 121.121i)), zero);
  40     EXPECT_FP_EQ(func(CFPT(neg_zero + neg_zero * 1.0i)), neg_zero);
  41     EXPECT_FP_EQ(func(CFPT(neg_zero + zero * 1.0i)), zero);
  42   }
  43
  44   void testRoundedNumbers(CRealFunc func) {
  45     EXPECT_FP_EQ(func((CFPT)(4523.1413 + 12413.1414i)), (FPT)(4523.1413));
  46     EXPECT_FP_EQ(func((CFPT)(-4523.1413 + 12413.1414i)), (FPT)(-4523.1413));
  47     EXPECT_FP_EQ(func((CFPT)(4523.1413 - 12413.1414i)), (FPT)(4523.1413));
  48     EXPECT_FP_EQ(func((CFPT)(-4523.1413 - 12413.1414i)), (FPT)(-4523.1413));
  49
  50     EXPECT_FP_EQ(func((CFPT)(3210.5678 + 9876.5432i)), (FPT)(3210.5678));
  51     EXPECT_FP_EQ(func((CFPT)(-3210.5678 + 9876.5432i)), (FPT)(-3210.5678));
  52     EXPECT_FP_EQ(func((CFPT)(3210.5678 - 9876.5432i)), (FPT)(3210.5678));
  53     EXPECT_FP_EQ(func((CFPT)(-3210.5678 - 9876.5432i)), (FPT)(-3210.5678));
  54
  55     EXPECT_FP_EQ(func((CFPT)(1234.4321 + 4321.1234i)), (FPT)(1234.4321));
  56     EXPECT_FP_EQ(func((CFPT)(-1234.4321 + 4321.1234i)), (FPT)(-1234.4321));
  57     EXPECT_FP_EQ(func((CFPT)(1234.4321 - 4321.1234i)), (FPT)(1234.4321));
  58     EXPECT_FP_EQ(func((CFPT)(-1234.4321 - 4321.1234i)), (FPT)(-1234.4321));
  59
  60     EXPECT_FP_EQ(func((CFPT)(6789.1234 + 8765.6789i)), (FPT)(6789.1234));
  61     EXPECT_FP_EQ(func((CFPT)(-6789.1234 + 8765.6789i)), (FPT)(-6789.1234));
  62     EXPECT_FP_EQ(func((CFPT)(6789.1234 - 8765.6789i)), (FPT)(6789.1234));
  63     EXPECT_FP_EQ(func((CFPT)(-6789.1234 - 8765.6789i)), (FPT)(-6789.1234));
  64   }
  65 };
  66
  67 #define LIST_CREAL_TESTS(U, T, func)                                           \
  68   using LlvmLibcCRealTest = CRealTest<U, T>;                                   \
  69   TEST_F(LlvmLibcCRealTest, SpecialNumbers) { testSpecialNumbers(&func); }     \
  70   TEST_F(LlvmLibcCRealTest, RoundedNumbers) { testRoundedNumbers(&func); }
  71
  72 #endif // LLVM_LIBC_TEST_SRC_COMPLEX_CREALTEST_H