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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 
6 #include <string>
7 
8 namespace stan {
9 
10  namespace math {
11 
30  template <typename T_y>
31  inline bool check_nonzero_size(const char* function,
32  const char* name,
33  const T_y& y) {
34  if (y.size() > 0)
35  return true;
36 
37  invalid_argument(function, name, 0,
38  "has size ",
39  ", but must have a non-zero size");
40  return false;
41  }
42 
43  }
44 }
45 #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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