1 //===-- Unittests for pow -------------------------------------------------===//
10 #include "src/math/pow.h"
32     // pow( 0.0, exponent )  in TEST_F()
33     EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::pow(zero, NEG_ODD_INTEGER),  in TEST_F()
36         inf, LIBC_NAMESPACE::pow(zero, NEG_EVEN_INTEGER), FE_DIVBYZERO);  in TEST_F()
37     EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::pow(zero, NEG_NON_INTEGER),  in TEST_F()
39     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(zero, POS_ODD_INTEGER));  in TEST_F()
40     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(zero, POS_EVEN_INTEGER));  in TEST_F()
41     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(zero, POS_NON_INTEGER));  in TEST_F()
42     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(zero, ONE_HALF));  in TEST_F()
43     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(zero, zero));  in TEST_F()
44     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(zero, neg_zero));  in TEST_F()
45     EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::pow(zero, inf));  in TEST_F()
46     EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::pow(zero, neg_inf),  in TEST_F()
48     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(zero, aNaN));  in TEST_F()
50     // pow( -0.0, exponent )  in TEST_F()
52         neg_inf, LIBC_NAMESPACE::pow(neg_zero, NEG_ODD_INTEGER), FE_DIVBYZERO);  in TEST_F()
54         inf, LIBC_NAMESPACE::pow(neg_zero, NEG_EVEN_INTEGER), FE_DIVBYZERO);  in TEST_F()
56         inf, LIBC_NAMESPACE::pow(neg_zero, NEG_NON_INTEGER), FE_DIVBYZERO);  in TEST_F()
57     EXPECT_FP_EQ(neg_zero, LIBC_NAMESPACE::pow(neg_zero, POS_ODD_INTEGER));  in TEST_F()
58     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(neg_zero, POS_EVEN_INTEGER));  in TEST_F()
59     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(neg_zero, POS_NON_INTEGER));  in TEST_F()
60     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(neg_zero, ONE_HALF));  in TEST_F()
61     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(neg_zero, zero));  in TEST_F()
62     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(neg_zero, neg_zero));  in TEST_F()
63     EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::pow(neg_zero, inf));  in TEST_F()
64     EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::pow(neg_zero, neg_inf),  in TEST_F()
66     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(neg_zero, aNaN));  in TEST_F()
68     // pow( 1.0, exponent )  in TEST_F()
69     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, zero));  in TEST_F()
70     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, neg_zero));  in TEST_F()
71     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, 1.0));  in TEST_F()
72     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, -1.0));  in TEST_F()
73     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, NEG_ODD_INTEGER));  in TEST_F()
74     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, NEG_EVEN_INTEGER));  in TEST_F()
75     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, NEG_NON_INTEGER));  in TEST_F()
76     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, POS_ODD_INTEGER));  in TEST_F()
77     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, POS_EVEN_INTEGER));  in TEST_F()
78     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, POS_NON_INTEGER));  in TEST_F()
79     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, inf));  in TEST_F()
80     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, neg_inf));  in TEST_F()
81     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(1.0, aNaN));  in TEST_F()
83     // pow( 1.0, exponent )  in TEST_F()
84     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(-1.0, zero));  in TEST_F()
85     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(-1.0, neg_zero));  in TEST_F()
86     EXPECT_FP_EQ(-1.0, LIBC_NAMESPACE::pow(-1.0, 1.0));  in TEST_F()
87     EXPECT_FP_EQ(-1.0, LIBC_NAMESPACE::pow(-1.0, -1.0));  in TEST_F()
88     EXPECT_FP_EQ(-1.0, LIBC_NAMESPACE::pow(-1.0, NEG_ODD_INTEGER));  in TEST_F()
89     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(-1.0, NEG_EVEN_INTEGER));  in TEST_F()
90     EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::pow(-1.0, NEG_NON_INTEGER),  in TEST_F()
92     EXPECT_FP_EQ(-1.0, LIBC_NAMESPACE::pow(-1.0, POS_ODD_INTEGER));  in TEST_F()
93     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(-1.0, POS_EVEN_INTEGER));  in TEST_F()
94     EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::pow(-1.0, POS_NON_INTEGER),  in TEST_F()
96     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(-1.0, inf));  in TEST_F()
97     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(-1.0, neg_inf));  in TEST_F()
98     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(-1.0, aNaN));  in TEST_F()
100     // pow( inf, exponent )  in TEST_F()
101     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(inf, zero));  in TEST_F()
102     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(inf, neg_zero));  in TEST_F()
103     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(inf, 1.0));  in TEST_F()
104     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(inf, -1.0));  in TEST_F()
105     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(inf, NEG_ODD_INTEGER));  in TEST_F()
106     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(inf, NEG_EVEN_INTEGER));  in TEST_F()
107     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(inf, NEG_NON_INTEGER));  in TEST_F()
108     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(inf, POS_ODD_INTEGER));  in TEST_F()
109     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(inf, POS_EVEN_INTEGER));  in TEST_F()
110     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(inf, POS_NON_INTEGER));  in TEST_F()
111     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(inf, ONE_HALF));  in TEST_F()
112     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(inf, inf));  in TEST_F()
113     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(inf, neg_inf));  in TEST_F()
114     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(inf, aNaN));  in TEST_F()
116     // pow( -inf, exponent )  in TEST_F()
117     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(neg_inf, zero));  in TEST_F()
118     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(neg_inf, neg_zero));  in TEST_F()
119     EXPECT_FP_EQ(neg_inf, LIBC_NAMESPACE::pow(neg_inf, 1.0));  in TEST_F()
120     EXPECT_FP_EQ(neg_zero, LIBC_NAMESPACE::pow(neg_inf, -1.0));  in TEST_F()
121     EXPECT_FP_EQ(neg_zero, LIBC_NAMESPACE::pow(neg_inf, NEG_ODD_INTEGER));  in TEST_F()
122     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(neg_inf, NEG_EVEN_INTEGER));  in TEST_F()
123     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(neg_inf, NEG_NON_INTEGER));  in TEST_F()
124     EXPECT_FP_EQ(neg_inf, LIBC_NAMESPACE::pow(neg_inf, POS_ODD_INTEGER));  in TEST_F()
125     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(neg_inf, POS_EVEN_INTEGER));  in TEST_F()
126     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(neg_inf, POS_NON_INTEGER));  in TEST_F()
127     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(neg_inf, ONE_HALF));  in TEST_F()
128     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(neg_inf, inf));  in TEST_F()
129     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(neg_inf, neg_inf));  in TEST_F()
130     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(neg_inf, aNaN));  in TEST_F()
132     // pow ( aNaN, exponent )  in TEST_F()
133     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(aNaN, zero));  in TEST_F()
134     EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(aNaN, neg_zero));  in TEST_F()
135     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, 1.0));  in TEST_F()
136     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, -1.0));  in TEST_F()
137     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, NEG_ODD_INTEGER));  in TEST_F()
138     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, NEG_EVEN_INTEGER));  in TEST_F()
139     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, NEG_NON_INTEGER));  in TEST_F()
140     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, POS_ODD_INTEGER));  in TEST_F()
141     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, POS_EVEN_INTEGER));  in TEST_F()
142     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, POS_NON_INTEGER));  in TEST_F()
143     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, inf));  in TEST_F()
144     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, neg_inf));  in TEST_F()
145     EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(aNaN, aNaN));  in TEST_F()
147     // pow ( base, inf )  in TEST_F()
148     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(0.1, inf));  in TEST_F()
149     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(-0.1, inf));  in TEST_F()
150     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(1.1, inf));  in TEST_F()
151     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(-1.1, inf));  in TEST_F()
153     // pow ( base, -inf )  in TEST_F()
154     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(0.1, neg_inf));  in TEST_F()
155     EXPECT_FP_EQ(inf, LIBC_NAMESPACE::pow(-0.1, neg_inf));  in TEST_F()
156     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(1.1, neg_inf));  in TEST_F()
157     EXPECT_FP_EQ(zero, LIBC_NAMESPACE::pow(-1.1, neg_inf));  in TEST_F()
161     // EXPECT_FP_EQ(0x1.0p15, LIBC_NAMESPACE::pow(2.0, 15.0));  in TEST_F()
162     // EXPECT_FP_EQ(0x1.0p126, LIBC_NAMESPACE::pow(2.0, 126.0));  in TEST_F()
163     // EXPECT_FP_EQ(0x1.0p-45, LIBC_NAMESPACE::pow(2.0, -45.0));  in TEST_F()
164     // EXPECT_FP_EQ(0x1.0p-126, LIBC_NAMESPACE::pow(2.0, -126.0));  in TEST_F()
165     // EXPECT_FP_EQ(0x1.0p-149, LIBC_NAMESPACE::pow(2.0, -149.0));  in TEST_F()
169     // EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(10.0, 0.0));  in TEST_F()
170     // EXPECT_FP_EQ(10.0, LIBC_NAMESPACE::pow(10.0, 1.0));  in TEST_F()
171     // EXPECT_FP_EQ(100.0, LIBC_NAMESPACE::pow(10.0, 2.0));  in TEST_F()
172     // EXPECT_FP_EQ(1000.0, LIBC_NAMESPACE::pow(10.0, 3.0));  in TEST_F()
173     // EXPECT_FP_EQ(10000.0, LIBC_NAMESPACE::pow(10.0, 4.0));  in TEST_F()
174     // EXPECT_FP_EQ(100000.0, LIBC_NAMESPACE::pow(10.0, 5.0));  in TEST_F()
175     // EXPECT_FP_EQ(1000000.0, LIBC_NAMESPACE::pow(10.0, 6.0));  in TEST_F()
176     // EXPECT_FP_EQ(10000000.0, LIBC_NAMESPACE::pow(10.0, 7.0));  in TEST_F()
177     // EXPECT_FP_EQ(100000000.0, LIBC_NAMESPACE::pow(10.0, 8.0));  in TEST_F()
178     // EXPECT_FP_EQ(1000000000.0, LIBC_NAMESPACE::pow(10.0, 9.0));  in TEST_F()
179     // EXPECT_FP_EQ(10000000000.0, LIBC_NAMESPACE::pow(10.0, 10.0));  in TEST_F()
184       EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::pow(3.1, 2001.0),  in TEST_F()
188       EXPECT_FP_EQ_WITH_EXCEPTION(0.0, LIBC_NAMESPACE::pow(3.1, -2001.0),  in TEST_F()
201   EXPECT_FP_IS_NAN(LIBC_NAMESPACE::pow(-min_denormal, 0.5));  in TEST_F()
202   EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(2.0, min_denormal));  in TEST_F()
208   EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::pow(-min_denormal, 0.5));  in TEST_F()
209   EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(2.0, min_denormal));  in TEST_F()
215   EXPECT_FP_EQ(0.0, LIBC_NAMESPACE::pow(-min_denormal, 0.5));  in TEST_F()
216   EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::pow(2.0, min_denormal));  in TEST_F()