[{"_id":"6745536e1b8c712f137a9c0d","publication":"6231a74bfebabbf75388ed52","user":{"_id":"6231a71c154913f71e77fac7","isDeactivated":false,"numFollowers":1,"hasGoldRing":false,"name":"Patchouli","username":"mudream4869","tagline":"工程師帕秋莉~","photo":"https://cdn.hashnode.com/res/hashnode/image/upload/v1647421213729/Tkrn6pBhb.jpeg"},"createdAt":"2024-11-26T04:49:46.167Z","memberName":"Patchouli","memberPhoto":"https://cdn.hashnode.com/res/hashnode/image/upload/v1647421213729/Tkrn6pBhb.jpeg","privacyState":"public","role":"author","updatedAt":"2024-11-26T04:49:46.167Z","username":"mudream4869","latestPosts":[{"_id":"66437e82a48a725b830fb181","views":11,"isActive":true,"type":"story","partOfPublication":true,"responseCount":0,"replyCount":0,"reactions":[],"totalReactions":0,"isPinnedToBlog":false,"title":"簡介 C++ 的 Type Erase (用多型和模板做 Duck Type)","cuid":"clw6j30c2000n08if0b7nfvea","dateAdded":"2024-05-14T15:08:50.930Z","isCoverAttributionHidden":false,"slug":"cpp-type-erase-duck-type","brief":"起點\n讓我們先從 template 出發：foo 需要一個 callback function。\ntemplate\nvoid foo(Func callback) {\n // ...\n callback();\n}\n\n但是這會讓編譯錯誤訊息有點模糊：假如 callback 並不是一個可以呼叫的函數指標，或者並不是一個 callable object ，那編譯器會說錯出在第四行。但是我們都希望，編譯器在呼叫函數時就幫我們指出：這不是 foo 想要的 call...","author":"6231a71c154913f71e77fac7","readTime":3,"tags":["5e08e075bcc8c0ce78e93263","5eaab0fc26e78ca711df89ad"],"publication":{"_id":"6231a74bfebabbf75388ed52","betaFeatures":{"newsletter":false,"embeds":false,"csvImport":false,"customCSS":false,"githubAsSource":false,"payments":false,"rssIntegration":false,"magazineLayout":false},"views":{"today":0,"thisWeek":3,"lastWeek":15,"thisMonth":20,"allTime":2283},"stripe":{"connected":false},"numFollowers":0,"badgePageEnabled":false,"newsletterEnabled":false,"textSelectionSharerEnabled":true,"newsletterFrequency":"asap","staticPages":[],"isFeatured":false,"dailyViewsForCurrentMonth":{"1712016000":2,"1712102400":6,"1712188800":1,"1712275200":3,"1712448000":1,"1712620800":2,"1712707200":9,"1712966400":1,"1713052800":1,"1713139200":2,"1713225600":6,"1713312000":1,"1713398400":4,"1713484800":3,"1713571200":1,"1713830400":5,"1713916800":1,"1714003200":1,"1714176000":2,"1714262400":1,"1714348800":3,"1714521600":3},"viewCountVisible":false,"readTimeHidden":false,"customCSSEnabled":false,"domainChecklistSkipped":false,"umamiDataImported":true,"author":"6231a71c154913f71e77fac7","isActive":true,"username":"patchouli","urlPattern":"simple","layout":"stacked","title":"帕秋莉的魔法筆記","links":{"twitter":"","instagram":"","github":"https://github.com/mudream4869","website":"https://blog.mukyu.tw/","hashnode":"https://hashnode.com/@mudream4869","youtube":"","dailydev":"","linkedin":"","mastodon":""},"domainStatus":{"certIssued":true,"ready":true},"domainUpdatedOn":"2024-02-01T03:06:59.503Z","customRules":[],"menu":[{"_id":"629033708826d59c309dcae5","type":"link","label":"WAY TO CPP11🚗","url":"https://notes.mukyu.dev/series/way-to-cpp11"},{"_id":"6320a2205483096daa0a86ec","type":"link","label":"PROBLEM SOLUTION","url":"https://notes.mukyu.dev/series/problem-solution"}],"__v":0,"umamiWebsiteUUID":"7b053634-d3e1-4b0b-894c-01baa23012c5","headerColor":"#ccccff","hasBadges":true,"imprint":"","imprintMarkdown":"","meta":"後端工程師。\n\n不定時張貼一些寫扣時的筆記。","metaHTML":"

後端工程師。

不定時張貼一些寫扣時的筆記。

\n","domain":"notes.mukyu.dev","blockBackupAllButton":false,"wwwPrefixedDomain":"","wwwPrefixedDomainStatus":{"certIssued":false,"ready":false},"updatedAt":"2024-07-25T04:36:38.332Z","createdAt":"2022-03-16T09:00:59.000Z","isTeam":true},"dateUpdated":"2024-06-13T15:05:16.582Z"},{"_id":"6638eec37b2672ea6ef5f882","views":8,"isActive":true,"type":"story","partOfPublication":true,"responseCount":0,"replyCount":0,"reactions":[],"totalReactions":0,"isPinnedToBlog":false,"title":"int64_t Literal Constant?","cuid":"clvv2zmj500080al56pzweniu","dateAdded":"2024-05-06T14:52:51.282Z","isCoverAttributionHidden":false,"slug":"int64t-literal-constant","brief":"事情源於一個 error:\n#include \n#include \n\nint main() {\n int64_t a = 2;\n std::cout << std::min(1L, a) << std::endl; // mac 上編不過\n std::cout << std::min(1LL, a) << std::endl; // ubuntu 20.04 上編不過\n return 0;\n}\n\n無論是 1L 還是 1LL 都沒...","author":"6231a71c154913f71e77fac7","readTime":1,"tags":["56744721958ef13879b948b7"],"publication":{"_id":"6231a74bfebabbf75388ed52","betaFeatures":{"newsletter":false,"embeds":false,"csvImport":false,"customCSS":false,"githubAsSource":false,"payments":false,"rssIntegration":false,"magazineLayout":false},"views":{"today":0,"thisWeek":3,"lastWeek":15,"thisMonth":20,"allTime":2283},"stripe":{"connected":false},"numFollowers":0,"badgePageEnabled":false,"newsletterEnabled":false,"textSelectionSharerEnabled":true,"newsletterFrequency":"asap","staticPages":[],"isFeatured":false,"dailyViewsForCurrentMonth":{"1712016000":2,"1712102400":6,"1712188800":1,"1712275200":3,"1712448000":1,"1712620800":2,"1712707200":9,"1712966400":1,"1713052800":1,"1713139200":2,"1713225600":6,"1713312000":1,"1713398400":4,"1713484800":3,"1713571200":1,"1713830400":5,"1713916800":1,"1714003200":1,"1714176000":2,"1714262400":1,"1714348800":3,"1714521600":3},"viewCountVisible":false,"readTimeHidden":false,"customCSSEnabled":false,"domainChecklistSkipped":false,"umamiDataImported":true,"author":"6231a71c154913f71e77fac7","isActive":true,"username":"patchouli","urlPattern":"simple","layout":"stacked","title":"帕秋莉的魔法筆記","links":{"twitter":"","instagram":"","github":"https://github.com/mudream4869","website":"https://blog.mukyu.tw/","hashnode":"https://hashnode.com/@mudream4869","youtube":"","dailydev":"","linkedin":"","mastodon":""},"domainStatus":{"certIssued":true,"ready":true},"domainUpdatedOn":"2024-02-01T03:06:59.503Z","customRules":[],"menu":[{"_id":"629033708826d59c309dcae5","type":"link","label":"WAY TO CPP11🚗","url":"https://notes.mukyu.dev/series/way-to-cpp11"},{"_id":"6320a2205483096daa0a86ec","type":"link","label":"PROBLEM SOLUTION","url":"https://notes.mukyu.dev/series/problem-solution"}],"__v":0,"umamiWebsiteUUID":"7b053634-d3e1-4b0b-894c-01baa23012c5","headerColor":"#ccccff","hasBadges":true,"imprint":"","imprintMarkdown":"","meta":"後端工程師。\n\n不定時張貼一些寫扣時的筆記。","metaHTML":"

後端工程師。

不定時張貼一些寫扣時的筆記。

Members (1)

Patchouli