Commit | Line | Data |
---|---|---|
867bef19 SP |
1 | #!perl -w |
2 | ||
3 | use strict; | |
4 | ||
7658eeca | 5 | use POSIX ':math_h_c99'; |
07bb61ac | 6 | use POSIX ':nan_payload'; |
1a77755a | 7 | use Test::More; |
867bef19 | 8 | |
1a917639 JH |
9 | use Config; |
10 | ||
b7b1e41b | 11 | # These tests are mainly to make sure that these arithmetic functions |
867bef19 SP |
12 | # exist and are accessible. They are not meant to be an exhaustive |
13 | # test for the interface. | |
14 | ||
1a77755a NC |
15 | sub between { |
16 | my ($low, $have, $high, $desc) = @_; | |
17 | local $Test::Builder::Level = $Test::Builder::Level + 1; | |
18 | ||
19 | cmp_ok($have, '>=', $low, $desc); | |
20 | cmp_ok($have, '<=', $high, $desc); | |
21 | } | |
22 | ||
867bef19 | 23 | is(acos(1), 0, "Basic acos(1) test"); |
1a77755a NC |
24 | between(3.14, acos(-1), 3.15, 'acos(-1)'); |
25 | between(1.57, acos(0), 1.58, 'acos(0)'); | |
867bef19 | 26 | is(asin(0), 0, "Basic asin(0) test"); |
1a77755a NC |
27 | cmp_ok(asin(1), '>', 1.57, "Basic asin(1) test"); |
28 | cmp_ok(asin(-1), '<', -1.57, "Basic asin(-1) test"); | |
29 | cmp_ok(asin(1), '==', -asin(-1), 'asin(1) == -asin(-1)'); | |
867bef19 | 30 | is(atan(0), 0, "Basic atan(0) test"); |
1a77755a NC |
31 | between(0.785, atan(1), 0.786, 'atan(1)'); |
32 | between(-0.786, atan(-1), -0.785, 'atan(-1)'); | |
33 | cmp_ok(atan(1), '==', -atan(-1), 'atan(1) == -atan(-1)'); | |
867bef19 | 34 | is(cosh(0), 1, "Basic cosh(0) test"); |
1a77755a NC |
35 | between(1.54, cosh(1), 1.55, 'cosh(1)'); |
36 | between(1.54, cosh(-1), 1.55, 'cosh(-1)'); | |
37 | is(cosh(1), cosh(-1), 'cosh(1) == cosh(-1)'); | |
867bef19 | 38 | is(floor(1.23441242), 1, "Basic floor(1.23441242) test"); |
1a77755a | 39 | is(floor(-1.23441242), -2, "Basic floor(-1.23441242) test"); |
867bef19 SP |
40 | is(fmod(3.5, 2.0), 1.5, "Basic fmod(3.5, 2.0) test"); |
41 | is(join(" ", frexp(1)), "0.5 1", "Basic frexp(1) test"); | |
42 | is(ldexp(0,1), 0, "Basic ldexp(0,1) test"); | |
43 | is(log10(1), 0, "Basic log10(1) test"); | |
44 | is(log10(10), 1, "Basic log10(10) test"); | |
45 | is(join(" ", modf(1.76)), "0.76 1", "Basic modf(1.76) test"); | |
46 | is(sinh(0), 0, "Basic sinh(0) test"); | |
1a77755a NC |
47 | between(1.17, sinh(1), 1.18, 'sinh(1)'); |
48 | between(-1.18, sinh(-1), -1.17, 'sinh(-1)'); | |
867bef19 | 49 | is(tan(0), 0, "Basic tan(0) test"); |
1a77755a NC |
50 | between(1.55, tan(1), 1.56, 'tan(1)'); |
51 | between(1.55, tan(1), 1.56, 'tan(-1)'); | |
52 | cmp_ok(tan(1), '==', -tan(-1), 'tan(1) == -tan(-1)'); | |
867bef19 | 53 | is(tanh(0), 0, "Basic tanh(0) test"); |
1a77755a NC |
54 | between(0.76, tanh(1), 0.77, 'tanh(1)'); |
55 | between(-0.77, tanh(-1), -0.76, 'tanh(-1)'); | |
56 | cmp_ok(tanh(1), '==', -tanh(-1), 'tanh(1) == -tanh(-1)'); | |
57 | ||
fa17b3a6 AP |
58 | SKIP: { |
59 | skip "no fpclassify", 4 unless $Config{d_fpclassify}; | |
60 | is(fpclassify(1), FP_NORMAL, "fpclassify 1"); | |
61 | is(fpclassify(0), FP_ZERO, "fpclassify 0"); | |
62 | is(fpclassify(INFINITY), FP_INFINITE, "fpclassify INFINITY"); | |
63 | is(fpclassify(NAN), FP_NAN, "fpclassify NAN"); | |
64 | } | |
65 | ||
8732b8db JH |
66 | sub near { |
67 | my ($got, $want, $msg, $eps) = @_; | |
68 | $eps ||= 1e-6; | |
69 | cmp_ok(abs($got - $want), '<', $eps, $msg); | |
70 | } | |
71 | ||
1a917639 | 72 | SKIP: { |
249502ae | 73 | unless ($Config{d_acosh}) { |
07bb61ac | 74 | skip "no acosh, suspecting no C99 math"; |
1a917639 | 75 | } |
bfce4ab3 | 76 | if ($^O =~ /Win32|VMS/) { |
07bb61ac | 77 | skip "running in $^O, C99 math support uneven"; |
bfce4ab3 | 78 | } |
8732b8db JH |
79 | near(M_SQRT2, 1.4142135623731, "M_SQRT2", 1e-9); |
80 | near(M_E, 2.71828182845905, "M_E", 1e-9); | |
81 | near(M_PI, 3.14159265358979, "M_PI", 1e-9); | |
82 | near(acosh(2), 1.31695789692482, "acosh", 1e-9); | |
83 | near(asinh(1), 0.881373587019543, "asinh", 1e-9); | |
84 | near(atanh(0.5), 0.549306144334055, "atanh", 1e-9); | |
85 | near(cbrt(8), 2, "cbrt", 1e-9); | |
86 | near(cbrt(-27), -3, "cbrt", 1e-9); | |
87 | near(copysign(3.14, -2), -3.14, "copysign", 1e-9); | |
88 | near(expm1(2), 6.38905609893065, "expm1", 1e-9); | |
89 | near(expm1(1e-6), 1.00000050000017e-06, "expm1", 1e-9); | |
39b5f1c4 JH |
90 | is(fdim(12, 34), 0, "fdim 12 34"); |
91 | is(fdim(34, 12), 22, "fdim 34 12"); | |
92 | is(fmax(12, 34), 34, "fmax 12 34"); | |
93 | is(fmin(12, 34), 12, "fmin 12 34"); | |
39b5f1c4 | 94 | is(hypot(3, 4), 5, "hypot 3 4"); |
8732b8db | 95 | near(hypot(-2, 1), sqrt(5), "hypot -1 2", 1e-9); |
39b5f1c4 JH |
96 | is(ilogb(255), 7, "ilogb 255"); |
97 | is(ilogb(256), 8, "ilogb 256"); | |
f0589851 JH |
98 | ok(isfinite(1), "isfinite 1"); |
99 | ok(!isfinite(Inf), "isfinite Inf"); | |
100 | ok(!isfinite(NaN), "isfinite NaN"); | |
101 | ok(isinf(INFINITY), "isinf INFINITY"); | |
102 | ok(isinf(Inf), "isinf Inf"); | |
103 | ok(!isinf(NaN), "isinf NaN"); | |
104 | ok(!isinf(42), "isinf 42"); | |
105 | ok(isnan(NAN), "isnan NAN"); | |
106 | ok(isnan(NaN), "isnan NaN"); | |
107 | ok(!isnan(Inf), "isnan Inf"); | |
108 | ok(!isnan(42), "isnan Inf"); | |
e64e4e04 | 109 | cmp_ok(nan(), '!=', nan(), 'nan'); |
8732b8db JH |
110 | near(log1p(2), 1.09861228866811, "log1p", 1e-9); |
111 | near(log1p(1e-6), 9.99999500000333e-07, "log1p", 1e-9); | |
112 | near(log2(8), 3, "log2", 1e-9); | |
f0589851 JH |
113 | is(signbit(2), 0, "signbit 2"); # zero |
114 | ok(signbit(-2), "signbit -2"); # non-zero | |
249502ae JH |
115 | is(round(2.25), 2, "round 2.25"); |
116 | is(round(-2.25), -2, "round -2.25"); | |
117 | is(round(2.5), 3, "round 2.5"); | |
118 | is(round(-2.5), -3, "round -2.5"); | |
119 | is(round(2.75), 3, "round 2.75"); | |
120 | is(round(-2.75), -3, "round 2.75"); | |
121 | is(trunc(2.25), 2, "trunc 2.25"); | |
122 | is(trunc(-2.25), -2, "trunc -2.25"); | |
123 | is(trunc(2.5), 2, "trunc 2.5"); | |
124 | is(trunc(-2.5), -2, "trunc -2.5"); | |
125 | is(trunc(2.75), 2, "trunc 2.75"); | |
126 | is(trunc(-2.75), -2, "trunc -2.75"); | |
3e2e323f JH |
127 | ok(isless(1, 2), "isless 1 2"); |
128 | ok(!isless(2, 1), "isless 2 1"); | |
129 | ok(!isless(1, 1), "isless 1 1"); | |
130 | ok(!isless(1, NaN), "isless 1 NaN"); | |
131 | ok(isgreater(2, 1), "isgreater 2 1"); | |
132 | ok(islessequal(1, 1), "islessequal 1 1"); | |
133 | ok(isunordered(1, NaN), "isunordered 1 NaN"); | |
b97384f9 JH |
134 | |
135 | near(erf(0.5), 0.520499877813047, "erf 0.5", 1.5e-7); | |
8732b8db | 136 | near(erf(1), 0.842700792949715, "erf 1", 1.5e-7); |
b97384f9 JH |
137 | near(erf(9), 1, "erf 9", 1.5e-7); |
138 | near(erfc(0.5), 0.479500122186953, "erfc 0.5", 1.5e-7); | |
8732b8db | 139 | near(erfc(1), 0.157299207050285, "erfc 1", 1.5e-7); |
b97384f9 JH |
140 | near(erfc(9), 0, "erfc 9", 1.5e-7); |
141 | ||
142 | # tgamma(n) = (n - 1)! | |
143 | # lgamma(n) = log(tgamma(n)) | |
144 | near(tgamma(5), 24, "tgamma 5", 1.5e-7); | |
145 | near(tgamma(5.5), 52.3427777845535, "tgamma 5.5", 1.5e-7); | |
8732b8db | 146 | near(tgamma(9), 40320, "tgamma 9", 1.5e-7); |
b97384f9 JH |
147 | near(lgamma(5), 3.17805383034795, "lgamma 4", 1.5e-7); |
148 | near(lgamma(5.5), 3.95781396761872, "lgamma 5.5", 1.5e-7); | |
8732b8db | 149 | near(lgamma(9), 10.6046029027452, "lgamma 9", 1.5e-7); |
43ce44e9 | 150 | |
07bb61ac JH |
151 | # These don't work on old mips/hppa platforms because == Inf (or == -Inf). |
152 | # ok(isnan(setpayload(0)), "setpayload zero"); | |
153 | # is(getpayload(setpayload(0)), 0, "setpayload + getpayload (zero)"); | |
154 | # | |
155 | # These don't work on most platforms because == Inf (or == -Inf). | |
156 | # ok(isnan(setpayloadsig(0)), "setpayload zero"); | |
157 | # is(getpayload(setpayloadsig(0)), 0, "setpayload + getpayload (zero)"); | |
158 | ||
159 | # Verify that the payload set be setpayload() | |
160 | # (1) still is a nan | |
161 | # (2) but the payload can be retrieved | |
162 | # (3) but is not signaling | |
163 | my $x = 0; | |
164 | setpayload($x, 0x12345); | |
165 | ok(isnan($x), "setpayload + isnan"); | |
166 | is(getpayload($x), 0x12345, "setpayload + getpayload"); | |
167 | ok(!issignaling($x), "setpayload + issignaling"); | |
168 | ||
169 | # Verify that the signaling payload set be setpayloadsig() | |
170 | # (1) still is a nan | |
171 | # (2) but the payload can be retrieved | |
172 | # (3) and is signaling | |
173 | setpayloadsig($x, 0x12345); | |
174 | ok(isnan($x), "setpayloadsig + isnan"); | |
175 | is(getpayload($x), 0x12345, "setpayload + getpayload"); | |
176 | ok(issignaling($x), "setpayloadsig + issignaling"); | |
177 | ||
178 | # Try a payload more than one byte. | |
179 | is(getpayload(nan(0x12345)), 0x12345, "nan + getpayload"); | |
180 | ||
181 | # Try payloads of 2^k, most importantly at and beyond 2^32. These | |
182 | # tests will fail if NV is just 32-bit float, but that Should Not | |
183 | # Happen (tm). | |
184 | is(getpayload(nan(2**31)), 2**31, "nan + getpayload 2**31"); | |
185 | is(getpayload(nan(2**32)), 2**32, "nan + getpayload 2**32"); | |
186 | is(getpayload(nan(2**33)), 2**33, "nan + getpayload 2**33"); | |
187 | ||
188 | # Payloads just lower than 2^k. | |
189 | is(getpayload(nan(2**31-1)), 2**31-1, "nan + getpayload 2**31-1"); | |
190 | is(getpayload(nan(2**32-1)), 2**32-1, "nan + getpayload 2**32-1"); | |
191 | ||
192 | # Payloads not divisible by two (and larger than 2**32). | |
193 | ||
194 | SKIP: { | |
195 | # solaris gets 10460353202 from getpayload() when it should | |
196 | # get 10460353203 (the 3**21). Things go wrong already in | |
197 | # the nan() payload setting: [0x2, 0x6f7c52b4] (ivsize=4) | |
198 | # instead [0x2, 0x6f7c52b3]. Then at getpayload() things | |
199 | # go wrong again, now in other direction: with the (wrong) | |
200 | # [0x2, 0x6f7c52b4] encoded in the nan we should decode into | |
201 | # 10460353204, but we get 10460353202. It doesn't seem to | |
202 | # help even if we use 'unsigned long long' instead of UV/U32 | |
203 | # in the POSIX.xs:S_setpayload/S_getpayload. | |
204 | # | |
205 | # casting bug? fmod() bug? Though also broken with | |
206 | # -Duselongdouble + fmodl(), so maybe Solaris cc bug | |
207 | # in general? | |
208 | # | |
209 | # Ironically, the large prime seems to work even in Solaris, | |
210 | # probably just by blind luck. | |
211 | skip($^O, 1) if $^O eq 'solaris'; | |
212 | is(getpayload(nan(3**21)), 3**21, "nan + getpayload 3**21"); | |
213 | } | |
214 | is(getpayload(nan(4294967311)), 4294967311, "nan + getpayload prime"); | |
215 | ||
216 | # Truncates towards zero. | |
217 | is(getpayload(nan(1234.567)), 1234, "nan (trunc) + getpayload"); | |
218 | ||
219 | # Not signaling. | |
220 | ok(!issignaling(0), "issignaling zero"); | |
221 | ok(!issignaling(+Inf), "issignaling +Inf"); | |
222 | ok(!issignaling(-Inf), "issignaling -Inf"); | |
223 | ok(!issignaling(NaN), "issignaling NaN"); | |
43ce44e9 | 224 | } # SKIP |
1a917639 | 225 | |
1a77755a | 226 | done_testing(); |