{"id":1475,"date":"2013-02-04T11:33:29","date_gmt":"2013-02-04T09:33:29","guid":{"rendered":"http:\/\/mariusbancila.ro\/blog\/?p=1475"},"modified":"2013-02-04T11:33:29","modified_gmt":"2013-02-04T09:33:29","slug":"cpplinq-new-operators","status":"publish","type":"post","link":"https:\/\/mariusbancila.ro\/blog\/2013\/02\/04\/cpplinq-new-operators\/","title":{"rendered":"cpplinq new operators"},"content":{"rendered":"

There are some new operators available in cpplinq<\/a>: singleton, generate, pairwise and zip_with. <\/p>\n

singleton<\/strong>
\nThis operator create a range with a single element, specified as argument. Using the operator is straight forward.<\/p>\n

\r\nauto result = singleton (42) >> to_vector (); \/\/ yields {42}\r\n<\/pre>\n
generate<\/strong>
\nThis operator creates a range using a given predicate.<\/p>\n
\r\nauto x = -1;\r\nauto result = generate ([&](){return (++x < 3) ? to_opt (x) : to_opt<int> ();}) >> to_vector (); \/\/ yields {0,1,2}\r\n<\/pre>\n
pairwise<\/strong>
\nGenerates a new range of pairs by grouping adjacent elements of an input range. On an empty range it yields an empty range.<\/p>\n
\r\nint numbers[] = {1,2,3,4,5};\r\nauto result = from_array(numbers) >> pairwise() >> to_vector(); \/\/ yields {(1,2),(2,3),(3,4),{4,5}}\r\n<\/pre>\n
zip_with<\/strong>
\nGenerates a new range of pairs by grouping together elements from two different ranges. If the two input ranges have different sizes, the result has the size of the smallest range. If any of the input ranges is empty, the result is an empty range.<\/p>\n
\r\nint a[] = {1, 2, 3};\r\nint b[] = {\"one\", \"two\", \"three\", \"four\", \"five\"};\r\nauto zipped = from_array(a) >> zip_with(from_array(b)) >> to_vector(); \/\/ yields {(1,\"one\"), (2,\"two\"), (3,\"three\")}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
There are some new operators available in cpplinq: singleton, generate, pairwise and zip_with. singleton This operator create a range with a single element, specified as argument. Using the operator is straight forward. auto result = singleton (42) >> to_vector (); \/\/ yields {42} generate This operator creates a range using a given predicate. auto x … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[7],"tags":[451,327,138,343,344],"class_list":["post-1475","post","type-post","status-publish","format-standard","hentry","category-c","tag-c","tag-cpplinq","tag-library","tag-pairwise","tag-zip_with"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t