| 78 | } |
| 79 | |
| 80 | void format_performance_string() |
| 81 | { |
| 82 | using boost::spirit::karma::left_align; |
| 83 | using boost::spirit::karma::generate; |
| 84 | |
| 85 | //[karma_format_performance_string |
| 86 | std::string generated; |
| 87 | std::back_insert_iterator<std::string> sink(generated); |
| 88 | //<- |
| 89 | util::high_resolution_timer t; |
| 90 | //-> |
| 91 | for (int i = 0; i < NUMITERATIONS; ++i) { |
| 92 | generated.clear(); |
| 93 | generate(sink |
| 94 | , '[' << left_align(14)[double3] << left_align(14)[double3] << ']' |
| 95 | , 12345.12345, 12345.12345); |
| 96 | } |
| 97 | //] |
| 98 | |
| 99 | std::cout << "karma (string):\t" << t.elapsed() << std::endl; |
| 100 | // std::cout << generated << std::endl; |
| 101 | } |
| 102 | |
| 103 | // Boost.Format |
| 104 | void format_performance_boost_format() |