Stan Math Library  2.10.0
reverse mode automatic differentiation
check_nonzero_size.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_ERR_CHECK_NONZERO_SIZE_HPP
2 #define STAN_MATH_PRIM_SCAL_ERR_CHECK_NONZERO_SIZE_HPP
3 
5 #include <string>
6 
7 namespace stan {
8 
9  namespace math {
10 
29  template <typename T_y>
30  inline bool check_nonzero_size(const char* function,
31  const char* name,
32  const T_y& y) {
33  if (y.size() > 0)
34  return true;
35 
36  invalid_argument(function, name, 0,
37  "has size ",
38  ", but must have a non-zero size");
39  return false;
40  }
41 
42  }
43 }
44 #endif
bool check_nonzero_size(const char *function, const char *name, const T_y &y)
Return true if the specified matrix/vector is of non-zero size.
void invalid_argument(const char *function, const char *name, const T &y, const char *msg1, const char *msg2)
Throw an invalid_argument exception with a consistently formatted message.

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