Stan Math Library  2.14.0
reverse mode automatic differentiation
check_less.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_ERR_CHECK_LESS_HPP
2 #define STAN_MATH_PRIM_SCAL_ERR_CHECK_LESS_HPP
3 
9 #include <functional>
10 #include <string>
11 
12 namespace stan {
13  namespace math {
14 
15  namespace {
16  template <typename T_y, typename T_high, bool is_vec>
17  struct less {
18  static void check(const char* function,
19  const char* name,
20  const T_y& y,
21  const T_high& high) {
22  using stan::length;
23  VectorView<const T_high> high_vec(high);
24  for (size_t n = 0; n < length(high); n++) {
25  if (!(y < high_vec[n])) {
26  std::stringstream msg;
27  msg << ", but must be less than ";
28  msg << high_vec[n];
29  std::string msg_str(msg.str());
30  domain_error(function, name, y,
31  "is ", msg_str.c_str());
32  }
33  }
34  }
35  };
36 
37  template <typename T_y, typename T_high>
38  struct less<T_y, T_high, true> {
39  static void check(const char* function,
40  const char* name,
41  const T_y& y,
42  const T_high& high) {
43  using stan::length;
44  VectorView<const T_high> high_vec(high);
45  for (size_t n = 0; n < length(y); n++) {
46  if (!(stan::get(y, n) < high_vec[n])) {
47  std::stringstream msg;
48  msg << ", but must be less than ";
49  msg << high_vec[n];
50  std::string msg_str(msg.str());
51  domain_error_vec(function, name, y, n,
52  "is ", msg_str.c_str());
53  }
54  }
55  }
56  };
57  }
58 
77  template <typename T_y, typename T_high>
78  inline void check_less(const char* function,
79  const char* name,
80  const T_y& y,
81  const T_high& high) {
82  less<T_y, T_high, is_vector_like<T_y>::value>
83  ::check(function, name, y, high);
84  }
85  }
86 }
87 #endif
size_t length(const std::vector< T > &x)
Definition: length.hpp:10
void domain_error_vec(const char *function, const char *name, const T &y, size_t i, const char *msg1, const char *msg2)
Throw a domain error with a consistently formatted message.
T get(const std::vector< T > &x, size_t n)
Definition: get.hpp:10
void domain_error(const char *function, const char *name, const T &y, const char *msg1, const char *msg2)
Throw a domain error with a consistently formatted message.
void check_less(const char *function, const char *name, const T_y &y, const T_high &high)
Check if y is strictly less than high.
Definition: check_less.hpp:78

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