1 | // Copyright 2016 the V8 project authors. All rights reserved. |
2 | // Use of this source code is governed by a BSD-style license that can be |
3 | // found in the LICENSE file. |
4 | |
5 | #ifndef V8_BASE_IEEE754_H_ |
6 | #define V8_BASE_IEEE754_H_ |
7 | |
8 | #include "src/base/base-export.h" |
9 | |
10 | namespace v8 { |
11 | namespace base { |
12 | namespace ieee754 { |
13 | |
14 | // Returns the arc cosine of |x|; that is the value whose cosine is |x|. |
15 | V8_BASE_EXPORT double acos(double x); |
16 | |
17 | // Returns the inverse hyperbolic cosine of |x|; that is the value whose |
18 | // hyperbolic cosine is |x|. |
19 | V8_BASE_EXPORT double acosh(double x); |
20 | |
21 | // Returns the arc sine of |x|; that is the value whose sine is |x|. |
22 | V8_BASE_EXPORT double asin(double x); |
23 | |
24 | // Returns the inverse hyperbolic sine of |x|; that is the value whose |
25 | // hyperbolic sine is |x|. |
26 | V8_BASE_EXPORT double asinh(double x); |
27 | |
28 | // Returns the principal value of the arc tangent of |x|; that is the value |
29 | // whose tangent is |x|. |
30 | V8_BASE_EXPORT double atan(double x); |
31 | |
32 | // Returns the principal value of the arc tangent of |y/x|, using the signs of |
33 | // the two arguments to determine the quadrant of the result. |
34 | V8_BASE_EXPORT double atan2(double y, double x); |
35 | |
36 | // Returns the cosine of |x|, where |x| is given in radians. |
37 | V8_BASE_EXPORT double cos(double x); |
38 | |
39 | // Returns the base-e exponential of |x|. |
40 | V8_BASE_EXPORT double exp(double x); |
41 | |
42 | V8_BASE_EXPORT double atanh(double x); |
43 | |
44 | // Returns the natural logarithm of |x|. |
45 | V8_BASE_EXPORT double log(double x); |
46 | |
47 | // Returns a value equivalent to |log(1+x)|, but computed in a way that is |
48 | // accurate even if the value of |x| is near zero. |
49 | V8_BASE_EXPORT double log1p(double x); |
50 | |
51 | // Returns the base 2 logarithm of |x|. |
52 | V8_BASE_EXPORT double log2(double x); |
53 | |
54 | // Returns the base 10 logarithm of |x|. |
55 | V8_BASE_EXPORT double log10(double x); |
56 | |
57 | // Returns the cube root of |x|. |
58 | V8_BASE_EXPORT double cbrt(double x); |
59 | |
60 | // Returns exp(x)-1, the exponential of |x| minus 1. |
61 | V8_BASE_EXPORT double expm1(double x); |
62 | |
63 | // Returns |x| to the power of |y|. |
64 | // The result of base ** exponent when base is 1 or -1 and exponent is |
65 | // +Infinity or -Infinity differs from IEEE 754-2008. The first edition |
66 | // of ECMAScript specified a result of NaN for this operation, whereas |
67 | // later versions of IEEE 754-2008 specified 1. The historical ECMAScript |
68 | // behaviour is preserved for compatibility reasons. |
69 | V8_BASE_EXPORT double pow(double x, double y); |
70 | |
71 | // Returns the sine of |x|, where |x| is given in radians. |
72 | V8_BASE_EXPORT double sin(double x); |
73 | |
74 | // Returns the tangent of |x|, where |x| is given in radians. |
75 | V8_BASE_EXPORT double tan(double x); |
76 | |
77 | // Returns the hyperbolic cosine of |x|, where |x| is given radians. |
78 | V8_BASE_EXPORT double cosh(double x); |
79 | |
80 | // Returns the hyperbolic sine of |x|, where |x| is given radians. |
81 | V8_BASE_EXPORT double sinh(double x); |
82 | |
83 | // Returns the hyperbolic tangent of |x|, where |x| is given radians. |
84 | V8_BASE_EXPORT double tanh(double x); |
85 | |
86 | } // namespace ieee754 |
87 | } // namespace base |
88 | } // namespace v8 |
89 | |
90 | #endif // V8_BASE_IEEE754_H_ |
91 | |