Stan Math Library  2.11.0
reverse mode automatic differentiation
check_ordered.hpp
Go to the documentation of this file.
1 #ifndef STAN_MATH_PRIM_ARR_ERR_CHECK_ORDERED_HPP
2 #define STAN_MATH_PRIM_ARR_ERR_CHECK_ORDERED_HPP
3 
7 #include <sstream>
8 #include <string>
9 #include <vector>
10 
11 namespace stan {
12  namespace math {
13 
29  template <typename T_y>
30  bool check_ordered(const char* function,
31  const char* name,
32  const std::vector<T_y>& y) {
33  if (y.size() == 0)
34  return true;
35 
36  for (size_t n = 1; n < y.size(); n++) {
37  if (!(y[n] > y[n-1])) {
38  std::ostringstream msg1;
39  msg1 << "is not a valid ordered vector."
40  << " The element at " << stan::error_index::value + n
41  << " is ";
42  std::string msg1_str(msg1.str());
43  std::ostringstream msg2;
44  msg2 << ", but should be greater than the previous element, "
45  << y[n-1];
46  std::string msg2_str(msg2.str());
47  domain_error(function, name, y[n],
48  msg1_str.c_str(), msg2_str.c_str());
49  return false;
50  }
51  }
52  return true;
53  }
54  }
55 }
56 #endif
bool check_ordered(const char *function, const char *name, const std::vector< T_y > &y)
Return true if the specified vector is sorted into strictly increasing order.
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.

     [ Stan Home Page ] © 2011–2016, Stan Development Team.