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  1. /* /////////////////////////////////////////////////////////////////////////
  2. * File: examples/cpp/inserters/example.cpp.inserter.real/example.cpp.inserter.real.cpp
  3. *
  4. * Purpose: C++ example program for Pantheios. Demonstrates:
  5. *
  6. * - use of Pantheios inserters for floating-point types
  7. * - use of pantheios::logputs() in bail-out conditions
  8. *
  9. * Created: 25th August 2006
  10. * Updated: 6th December 2010
  11. *
  12. * www: http://www.pantheios.org/
  13. *
  14. * License: This source code is placed into the public domain 2006
  15. * by Synesis Software Pty Ltd. There are no restrictions
  16. * whatsoever to your use of the software.
  17. *
  18. * This software is provided "as is", and any warranties,
  19. * express or implied, of any kind and for any purpose, are
  20. * disclaimed.
  21. *
  22. * ////////////////////////////////////////////////////////////////////// */
  23. /* Pantheios Header Files */
  24. #include <pantheios/pantheios.hpp> // Pantheios C++ main header
  25. #include <pantheios/inserters/real.hpp> // for pantheios::real
  26. /* Standard C/C++ Header Files */
  27. #include <exception> // for std::exception
  28. #include <new> // for std::bad_alloc
  29. #include <string> // for std::string
  30. #include <stdlib.h> // for exit codes
  31. /* ////////////////////////////////////////////////////////////////////// */
  32. /* Define the stock front-end process identity, so that it links when using
  33. * fe.N, fe.simple, etc. */
  34. PANTHEIOS_EXTERN_C const PAN_CHAR_T PANTHEIOS_FE_PROCESS_IDENTITY[] = PANTHEIOS_LITERAL_STRING("example.cpp.inserter.real");
  35. /* ////////////////////////////////////////////////////////////////////// */
  36. #define PSTR(x) PANTHEIOS_LITERAL_STRING(x)
  37. /* ////////////////////////////////////////////////////////////////////// */
  38. int main()
  39. {
  40. try
  41. {
  42. float f = 1234.5678f;
  43. double d = 12345678.0123456789;
  44. long double ld = 6.142e-23;
  45. // Log a float; Output: "f: [1234.57]"
  46. pantheios::log_NOTICE(PSTR("f: ["), pantheios::real(f), PSTR("]"));
  47. // Log a double; Output: "d: [1.23457e+007]"
  48. pantheios::log_NOTICE(PSTR("d: ["), pantheios::real(d), PSTR("]"));
  49. // Log a long double; Output: "ld: [6.142e-023]"
  50. pantheios::log_NOTICE(PSTR("ld: ["), pantheios::real(ld), PSTR("]"));
  51. return EXIT_SUCCESS;
  52. }
  53. catch(std::bad_alloc&)
  54. {
  55. pantheios::log(pantheios::alert, PSTR("out of memory"));
  56. }
  57. catch(std::exception& x)
  58. {
  59. pantheios::log_CRITICAL(PSTR("Exception: "), x);
  60. }
  61. catch(...)
  62. {
  63. pantheios::logputs(pantheios::emergency, PSTR("Unexpected unknown error"));
  64. }
  65. return EXIT_FAILURE;
  66. }
  67. /* ///////////////////////////// end of file //////////////////////////// */