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Considered harmful is a phrase used in the titles of at least 65 critical essays in computer science and related disciplines. It was popularized by Edsger Dijkstra's letter ''Go To Statement Considered Harmful'', published in the March 1968 ''Communications of the ACM'' (CACM), in which he criticized the excessive use of the GOTO statement in programming languages of the day and advocated structured programming instead.〔(【引用サイトリンク】 Go To Statement Considered Harmful: A Retrospective )〕 The original title of the letter, as submitted to CACM, was ''A Case Against the Goto Statement'', but CACM editor Niklaus Wirth changed the title to ''Go To Statement Considered Harmful''.〔 (June, 2001)〕 Regarding this new title, Donald Knuth quipped that "Dr. Goto cheerfully complained that he was always being eliminated." Frank Rubin published a criticism of Dijkstra's letter in the March 1987 CACM where it appeared under the title '' 'GOTO Considered Harmful' Considered Harmful''. The May 1987 CACM printed further replies, both for and against, under the title '' '"GOTO Considered Harmful" Considered Harmful' Considered Harmful?''. Dijkstra's own response to this controversy was titled ''On a Somewhat Disappointing Correspondence''.〔 (May, 1987)〕 According to linguist Mark Liberman, ''considered harmful'' was a journalistic cliché, used in headlines, well before the Dijkstra article. He cites the headline over a letter published August 12, 1949 in ''The New York Times'': "Rent Control Controversy / Enacting Now of Hasty Legislation Considered Harmful".〔(【引用サイトリンク】 Language Log: Considered harmful )〕 ==Variants== Some variants with replacement adjectives (''considered silly'', etc.) have been noted in hacker jargon.〔(【引用サイトリンク】Steve Yegge "> url = http://steve.yegge.googlepages.com/singleton-considered-stupid )〕 Many variants deal with computer-related issues, such as: * "'' * "''XMLHttpRequest Considered Harmful''" * "''Csh Programming Considered Harmful''" * "''Turing Test Considered Harmful''" * "''Geek Culture Considered Harmful to Perl''" 〔(【引用サイトリンク】 Geek Culture Considered Harmful to Perl )〕 * "''with Statement Considered Harmful''" Web design consultant Eric A. Meyer focused upon the letter itself: "''Considered Harmful Essays Considered Harmful''".〔(【引用サイトリンク】Eric A. Meyer "> url = http://meyerweb.com/eric/comment/chech.html )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Considered harmful」の詳細全文を読む スポンサード リンク
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