isl_test_cpp17.cc

Go to the documentation of this file.

#include <stdlib.h>
 
#include <exception>
#include <sstream>
 
#include <isl/options.h>
#include <isl/cpp.h>
 
/* Throw a runtime exception.
 */
static void die_impl(const char *file, int line, const char *message)
{
  std::ostringstream ss;
  ss << file << ":" << line << ": " << message;
  throw std::runtime_error(ss.str());
}
 
#define die(msg) die_impl(__FILE__, __LINE__, msg)
 
#include "isl_test_cpp17-generic.cc"
 
/* Check that an isl::exception_invalid gets thrown by "fn".
 */
static void check_invalid(const std::function<void(void)> &fn)
{
  bool caught = false;
  try {
    fn();
  } catch (const isl::exception_invalid &e) {
    caught = true;
  }
  if (!caught)
    die("no invalid exception was generated");
}
 
/* Test id::user.
 *
 * In particular, check that the object attached to an identifier
 * can be retrieved again and that retrieving an object of the wrong type
 * or retrieving an object when no object was attached results in an exception.
 */
static void test_user(isl::ctx ctx)
{
  isl::id id(ctx, "test", 5);
  isl::id id2(ctx, "test2");
  isl::id id3(ctx, "test3", std::string("s"));
 
  auto int_user = id.user<int>();
  if (int_user != 5)
    die("wrong integer retrieved from isl::id");
  auto s_user = id3.user<std::string>();
  if (s_user != "s")
    die("wrong string retrieved from isl::id");
  check_invalid([&id] () { id.user<std::string>(); });
  check_invalid([&id2] () { id2.user<int>(); });
  check_invalid([&id2] () { id2.user<std::string>(); });
  check_invalid([&id3] () { id3.user<int>(); });
}
 
/* Test the C++17 specific features of the (unchecked) isl C++ interface
 *
 * In particular, test
 *  - id::try_user
 *  - id::user
 */
int main()
{
  isl_ctx *ctx = isl_ctx_alloc();
 
  isl_options_set_on_error(ctx, ISL_ON_ERROR_ABORT);
 
  test_try_user(ctx);
  test_user(ctx);
 
  isl_ctx_free(ctx);
 
  return EXIT_SUCCESS;
}