out_of_range.hpp

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#ifndef STAN_MATH_PRIM_ERR_OUT_OF_RANGE_HPP
#define STAN_MATH_PRIM_ERR_OUT_OF_RANGE_HPP
 
#include <stan/math/prim/meta.hpp>
#include <typeinfo>
#include <sstream>
#include <stdexcept>
 
namespace stan {
namespace math {
 
inline void out_of_range(const char* function, int max, int index,
                         const char* msg1 = "", const char* msg2 = "") {
  std::ostringstream message;
  message << function << ": accessing element out of range. "
          << "index " << index << " out of range; ";
 
  if (max == 0) {
    message << "container is empty and cannot be indexed" << msg1 << msg2;
  } else {
    message << "expecting index to be between " << stan::error_index::value
            << " and " << stan::error_index::value - 1 + max << msg1 << msg2;
  }
  throw std::out_of_range(message.str());
}
 
}  // namespace math
}  // namespace stan
#endif