Stan Math Library  2.9.0
reverse mode automatic differentiation
check_positive_size.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_ERR_CHECK_POSITIVE_SIZE_HPP
2 #define STAN_MATH_PRIM_SCAL_ERR_CHECK_POSITIVE_SIZE_HPP
3 
5 #include <sstream>
6 #include <string>
7 
8 namespace stan {
9  namespace math {
10 
23  inline bool check_positive_size(const char* function,
24  const char* name,
25  const char* expr,
26  const int size) {
27  if (size <= 0) {
28  std::stringstream msg;
29  msg << "; dimension size expression = " << expr;
30  std::string msg_str(msg.str());
31  invalid_argument(function, name, size,
32  "must have a positive size, but is ",
33  msg_str.c_str());
34  }
35  return true;
36  }
37 
38  }
39 }
40 #endif
bool check_positive_size(const char *function, const char *name, const char *expr, const int size)
Return true if size is positive.
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.
int size(const std::vector< T > &x)
Return the size of the specified standard vector.
Definition: size.hpp:17

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