{"provider_url":"https://hatena.blog","description":"Boost 1.47.0\u3067\u5c0e\u5165\u4e88\u5b9a\u306eBoost.Chrono\u3067\u306e\u7c21\u5358\u306a\u5b9f\u884c\u6642\u9593\u306e\u6e2c\u5b9a\u3067\u3059\u3002 #include <boost/chrono/process_times.hpp> #include <cmath> int main() { boost::chrono::run_timer t; for (int i = 0; i < 100000; ++i) std::sqrt(123.456L); // \u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406 } real 0.008s, cpu 0.016s (185.1%), user 0.016s, system 0.000s \u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306fstd::cout\u306b\u51fa\u529b\u3055\u308c\u307e\u3059\u304c\u3001\u2026","author_name":"faith_and_brave","provider_name":"Hatena Blog","categories":["C++"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffaithandbrave.hateblo.jp%2Fentry%2F20110420%2F1303290831\" title=\" Boost.Chrono\u3067\u5b9f\u884c\u6642\u9593\u306e\u7c21\u5358\u306a\u6e2c\u5b9a - Faith and Brave - C++\u3067\u904a\u307c\u3046\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","blog_url":"https://faithandbrave.hateblo.jp/","height":"190","blog_title":"Faith and Brave - C++\u3067\u904a\u307c\u3046","author_url":"https://blog.hatena.ne.jp/faith_and_brave/","width":"100%","type":"rich","url":"https://faithandbrave.hateblo.jp/entry/20110420/1303290831","title":" Boost.Chrono\u3067\u5b9f\u884c\u6642\u9593\u306e\u7c21\u5358\u306a\u6e2c\u5b9a","image_url":null,"published":"2011-04-20 18:13:51"}