v\u00fdvoj softwaru<\/a> k popisu k\u00f3du, kter\u00fd se ji\u017e v programu nepou\u017e\u00edv\u00e1 nebo neprov\u00e1d\u00ed. Tento k\u00f3d mohl b\u00fdt naps\u00e1n pro ur\u010dit\u00fd \u00fa\u010del, ale v d\u016fsledku zm\u011bn v po\u017eadavc\u00edch nebo n\u00e1vrhu programu se stal zastaral\u00fdm a nepot\u0159ebn\u00fdm. Mrtv\u00fd k\u00f3d se m\u016f\u017ee vyskytovat v jak\u00e9mkoli programovac\u00edm jazyce, od n\u00edzko\u00farov\u0148ov\u00e9ho k\u00f3du assembleru a\u017e po vysoko\u00farov\u0148ov\u00e9 skriptovac\u00ed jazyky.<\/p>\nMrtv\u00fd k\u00f3d m\u016f\u017ee b\u00fdt probl\u00e9mem z n\u011bkolika d\u016fvod\u016f. Zaprv\u00e9 m\u016f\u017ee zp\u016fsobit, \u017ee program je rozs\u00e1hlej\u0161\u00ed a obt\u00ed\u017en\u011bji pochopiteln\u00fd, co\u017e m\u016f\u017ee v\u00e9st k chyb\u00e1m a omyl\u016fm. Za druh\u00e9 m\u016f\u017ee zpomalit dobu prov\u00e1d\u011bn\u00ed programu, proto\u017ee po\u010d\u00edta\u010d mus\u00ed tr\u00e1vit \u010das zpracov\u00e1n\u00edm k\u00f3du, kter\u00fd se nikdy nepou\u017eije. V neposledn\u00ed \u0159ad\u011b m\u016f\u017ee mrtv\u00fd k\u00f3d zt\u00ed\u017eit \u00fadr\u017ebu programu, proto\u017ee v\u00fdvoj\u00e1\u0159i mohou ztr\u00e1cet \u010das snahou pochopit, pro\u010d je v programu ur\u010dit\u00fd k\u00f3d, jen aby zjistili, \u017ee nen\u00ed pot\u0159eba.<\/p>\n
Existuje n\u011bkolik zp\u016fsob\u016f, jak identifikovat mrtv\u00fd k\u00f3d v programu. Jedn\u00edm z b\u011b\u017en\u00fdch postup\u016f je pou\u017eit\u00ed n\u00e1stroje pro anal\u00fdzu k\u00f3du, kter\u00fd dok\u00e1\u017ee prohledat k\u00f3dovou z\u00e1kladnu programu a identifikovat nepou\u017e\u00edvan\u00e9 funkce, prom\u011bnn\u00e9 nebo p\u0159\u00edkazy. Dal\u0161\u00edm p\u0159\u00edstupem je ru\u010dn\u00ed prohl\u00eddka k\u00f3du a hled\u00e1n\u00ed k\u00f3du, kter\u00fd se nezd\u00e1 b\u00fdt pou\u017e\u00edv\u00e1n nebo na kter\u00fd se nikde jinde v programu neodkazuje.<\/p>\n
Jakmile je identifikov\u00e1n mrtv\u00fd k\u00f3d, m\u011bl by b\u00fdt z programu odstran\u011bn. To lze prov\u00e9st bu\u010f p\u0159\u00edm\u00fdm odstran\u011bn\u00edm k\u00f3du, nebo jeho zakomentov\u00e1n\u00edm, aby jej bylo mo\u017en\u00e9 v p\u0159\u00edpad\u011b pot\u0159eby v budoucnu snadno obnovit. Odstran\u011bn\u00ed mrtv\u00e9ho k\u00f3du m\u016f\u017ee pomoci zlep\u0161it v\u00fdkonnost programu, zmen\u0161it jeho velikost a usnadnit jeho \u00fadr\u017ebu a pochopen\u00ed.<\/p>\n
Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee mrtv\u00fd k\u00f3d je b\u011b\u017en\u00fdm probl\u00e9mem p\u0159i v\u00fdvoji softwaru, kter\u00fd m\u016f\u017ee v\u00e9st k \u0159ad\u011b probl\u00e9m\u016f, od chyb a omyl\u016f a\u017e po pomalej\u0161\u00ed prov\u00e1d\u011bn\u00ed a zv\u00fd\u0161en\u00e9 n\u00e1klady na \u00fadr\u017ebu. Identifikace a odstran\u011bn\u00ed mrtv\u00e9ho k\u00f3du je d\u016fle\u017eitou sou\u010d\u00e1st\u00ed udr\u017eov\u00e1n\u00ed efektivn\u00edho a \u00fa\u010dinn\u00e9ho chodu programu.<\/p>","protected":false},"excerpt":{"rendered":"
P\u0159e\u010dt\u011bte si o mrtv\u00e9m k\u00f3du p\u0159i v\u00fdvoji softwaru: co to je, pro\u010d je to probl\u00e9m a jak ho identifikovat a odstranit, aby se zlep\u0161il v\u00fdkon programu.<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6563","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"\n
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