Embedded Template Library  1.0
ratio.h
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4 The MIT License(MIT)
5 
6 Embedded Template Library.
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10 Copyright(c) 2016 jwellbelove
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30 
31 #ifndef ETL_RATIO_INCLUDED
32 #define ETL_RATIO_INCLUDED
33 
34 #include <stdint.h>
35 
38 
39 namespace etl
40 {
41  template <const size_t NUM, const size_t DEN = 1>
42  struct ratio
43  {
44  static ETL_CONSTANT intmax_t num = NUM;
45  static ETL_CONSTANT intmax_t den = DEN;
46  };
47 
48  #if INT_MAX > INT32_MAX
51  typedef ratio<1, 1000000000000000000> atto;
52  typedef ratio<1, 1000000000000000> femto;
53  typedef ratio<1, 1000000000000> pico;
54  #endif
55 
56  #if (INT_MAX >= INT32_MAX)
57  typedef ratio<1, 1000000000> nano;
58  typedef ratio<1, 1000000> micro;
59  #endif
60 
61  #if (INT_MAX >= INT16_MAX)
62  typedef ratio<1, 1000> milli;
63  typedef ratio<1, 100> centi;
64  typedef ratio<1, 10> deci;
65  typedef ratio<10, 1> deca;
66  typedef ratio<100, 1> hecto;
67  typedef ratio<1000, 1> kilo;
68  #endif
69 
70  #if (INT_MAX >= INT32_MAX)
71  typedef ratio<1000000, 1> mega;
72  typedef ratio<1000000000, 1> giga;
73  #endif
74 
75  #if INT_MAX > INT32_MAX
76  typedef ratio<1000000000000, 1> tera;
77  typedef ratio<1000000000000000, 1> peta;
81  #endif
82 
85 
88 
91 }
92 
93 #endif
94 
Definition: absolute.h:37
ratio< 355, 113 > ratio_pi
An approximation of PI to 6 digits.
Definition: ratio.h:84
ratio< 326, 120 > ratio_e
An approximation of e.
Definition: ratio.h:90
ratio< 239, 169 > ratio_root2
An approximation of root 2.
Definition: ratio.h:87
Definition: ratio.h:43