/Src/Dependencies/Boost/boost/random/detail/vector_io.hpp

http://hadesmem.googlecode.com/ · C++ Header · 75 lines · 57 code · 7 blank · 11 comment · 12 complexity · 5c93caa9a182a33b42e531969396adcb MD5 · raw file

  1. /* boost random/vector_io.hpp header file
  2. *
  3. * Copyright Steven Watanabe 2011
  4. * Distributed under the Boost Software License, Version 1.0. (See
  5. * accompanying file LICENSE_1_0.txt or copy at
  6. * http://www.boost.org/LICENSE_1_0.txt)
  7. *
  8. * See http://www.boost.org for most recent version including documentation.
  9. *
  10. * $Id: vector_io.hpp 71018 2011-04-05 21:27:52Z steven_watanabe $
  11. */
  12. #ifndef BOOST_RANDOM_DETAIL_VECTOR_IO_HPP
  13. #define BOOST_RANDOM_DETAIL_VECTOR_IO_HPP
  14. #include <vector>
  15. #include <iosfwd>
  16. #include <istream>
  17. namespace boost {
  18. namespace random {
  19. namespace detail {
  20. template<class CharT, class Traits, class T>
  21. void print_vector(std::basic_ostream<CharT, Traits>& os,
  22. const std::vector<T>& vec)
  23. {
  24. typename std::vector<T>::const_iterator
  25. iter = vec.begin(),
  26. end = vec.end();
  27. os << os.widen('[');
  28. if(iter != end) {
  29. os << *iter;
  30. ++iter;
  31. for(; iter != end; ++iter)
  32. {
  33. os << os.widen(' ') << *iter;
  34. }
  35. }
  36. os << os.widen(']');
  37. }
  38. template<class CharT, class Traits, class T>
  39. void read_vector(std::basic_istream<CharT, Traits>& is, std::vector<T>& vec)
  40. {
  41. CharT ch;
  42. if(!(is >> ch)) {
  43. return;
  44. }
  45. if(ch != is.widen('[')) {
  46. is.putback(ch);
  47. is.setstate(std::ios_base::failbit);
  48. return;
  49. }
  50. T val;
  51. while(is >> std::ws >> val) {
  52. vec.push_back(val);
  53. }
  54. if(is.fail()) {
  55. is.clear();
  56. if(!(is >> ch)) {
  57. return;
  58. }
  59. if(ch != is.widen(']')) {
  60. is.putback(ch);
  61. is.setstate(std::ios_base::failbit);
  62. }
  63. }
  64. }
  65. }
  66. }
  67. }
  68. #endif // BOOST_RANDOM_DETAIL_VECTOR_IO_HPP