text: #ifndef STAN_LANG_AST_FUN_HAS_CDF_SUFFIX_DEF_HPP
  #define STAN_LANG_AST_FUN_HAS_CDF_SUFFIX_DEF_HPP
  
  #include <stan/lang/ast.hpp>
  #include <string>
  
  namespace stan {
  namespace lang {
  
  bool has_cdf_suffix(const std::string& fname) {
    return ends_with("_lcdf", fname) || ends_with("_cdf_log", fname);
  }
  
  }  // namespace lang
  }  // namespace stan
  #endif
  