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STL/Miscellaneous

miscellaneous : <‚ฌ๋ฌผ ๋“ด> ˜•˜•ƒ‰ƒ‰˜ (๊ฒƒœผ๋กœ ด๋ฃจ–ด„), ๊ฐ–๊ฐ€ง€ žก๋‹ค•œ, žก๋™‚ฌ๋‹ˆ˜

Šน๋ณ„žˆ œ„น˜•  ๊ณณด —†๋Š”  •๋ณด๋“ค˜ Ž˜ดง€. Œ“—ฌ„œ ๋ถ„๋ฆฌ๋ฉ๋‹ˆ๋‹ค.

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›•˜๋Š” ๊ฐ’ ‚ญ œ•˜๊ธฐ

  • –ด๋–ค ปจ…Œด๋„ˆ๊ฐ€ int๊ฐ’๋“ค„ ๋‹ด๊ณ  žˆ๋‹ค๊ณ  •˜ž. ๊ฐ๊ธฐ„œ 1982 ๋ผ๋Š” ˆž๋ฅผ ๋ชฝ๋•… ง€›Œฃผ๊ณ  ‹ถ๋‹ค๋ฉด?
    • Contiguous-memory container ผ๋•Œ

~cpp 
c.erase( remove(c.begin(), c.end(), 1982), c.end() );        // ด๊ด ๋‚ด๋ถ€ œผ๋กœ –ด๋–ป๊ฒŒ ๋Œ•„๊ฐ€๋Š” ๊ธ๊นŒ. ฐพ•„๋ด•ผ๊ฒ ๊ตฐ. 
  • listผ๋•Œ - erase จ๋„ ๋˜ง€๋งŒ remove๊ฐ€ ๋” šจœจ ด๋‹ค.

~cpp 
c.remove(1982);
  • Associative container ผ๋•Œ - remove“ฐ๋ฉด ๋‚œ๋ฆฌ๋‚œ๋‹ค.(—†œผ๋‹ˆ๊น--;) ๋˜  œ๋„ค๋ฆญ •Œ๊ณ ๋ฆฌฆ˜ remove๋„ —ญ‹œ •ˆ๋œ๋‹ค. ปจ…Œด๋„ˆ๊ฐ€ ๋ง๊ฐ€ˆˆ˜๋„ žˆ๋‹ค.

~cpp 
c.erase(1982);

ŒŒผ ฝ–ด ˜ค๊ธฐ

~cpp 
// ints.dat —„œ  •ˆ˜๋“ค„ ฝ–ด™€ list—  €žฅ•ดคŒ
ifstream dataFile("ints.dat"); 
ifstream_iterator<int> dataBegin(dataFile); 
ifstream_iterator<int> dataEnd; 
 
list<int> data(dataBegin, dataEnd);         // š”๋Ÿฐ‹œผ๋กœ จฃผž. 

ฃผ˜‚ฌ•ญ

  • ปจ…Œด๋„ˆ๋ฅผ •„๋ฌด๊ฐ๋‚˜ “ฐ๋ฉด •ˆ๋œ๋‹ค. ๊ฐ€žฅ ตœ ™”๋œ ž๋ฃŒ๊ตฌกฐ๋ฅผ ƒ๊ฐ•ด„œ จ•ผ•œ๋‹ค.
  • vector<Object*> ด๋Ÿฐ‹œผ๋กœ ๋™  ƒ„•˜๋Š” ๊ฐฒด˜ ๋ ˆผ๋ŸฐŠค๋ฅผ œ„•œ ฌธ„ฐ๋ฅผ ปจ…Œด๋„ˆ— ๋„„๋•Œ๋Š” ถ”›„ ฌธ„ฐ๊ฐ€ ๊ฐ€๋ฆฌ‚ค๋Š” ๊ฐฒด๋ฅผ ง ‘ delete •ดค˜•ผ •œ๋‹ค.
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STL
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