[問題] 新手發問 "!!"的意思
看資料結構的書的時候，應該是用c寫的吧
發現code裡出現 !! 這個符號
煩請解惑感激不盡~
節錄部份code:
BinQueue
Merge(BinQueue H1, BinQueue H2)
{
Bintree T1, T2, Carry=Null;
int i j;
if(H1->CurrentSize +H2->CurrentSize >Capacity)
error("Merge would exceed capacity");
H1->CurrentSize += H2->CurrentSize;
for(i=0, j=1; j<= H2->CurrentSize; i++, j*=2)
}
T1=H1->TheTrees[i];T2=H2->TheTrees[i];
switch( !!T1 + 2 * !! T2 + 4 * !! Carry)
{
case 0: /*no trees*/
case 1: /*only H1*/
break;
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 219.84.2.1
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※ 編輯: Barros 來自: 219.84.2.1 (03/08 21:29)
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