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A better way to do things.. ?

Posted on 2011-03-12
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Last Modified: 2012-05-11
I have the following code snippet:
"      if ((Indeks == 1) || (Indeks == 4) || (Indeks == 7) || (Indeks == 10) || (Indeks == 13) || (Indeks == 16) || (Indeks == 19) || (Indeks == 22) || (Indeks == 25) || (Indeks == 28) || (Indeks == 31) || (Indeks == 34) ) "

Is there another way to express this, i.e. by checking if the value of Indeks contains one of the following values (1,4,7,10,13,16,19,22,25,28,31,34).

Something like
    if (Indeks) is a member of [1,4,7,10,13,16,19,22,25,28,31,34) -> go further..

Anyone ?
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Question by:toyboy61
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evilrix earned 250 total points
ID: 35117104
Efficient in terms of runtime performance but verbose

switch(Indeks)
{
   case 1: case 4: case 7: case 10: case 13: case 16:
   case 19: case 22 case 25: case 28: case 31: case 34:
      // do something
      break;
}

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Less efficient in terms of runtime performance but more compact.
http://www.cplusplus.com/reference/algorithm/find/

int i = {1,4,7,10,13,16,19,22,25,28,31,34};
size_t x = sizeof(i)/sizeof(i[0]);
if(i+x != std::find(i, i+x, Indeks))
{
   // do something
}

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