Created
February 8, 2013 23:49
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Comparison between C style for loop and Erlang on a sum function example
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| // | |
| // C - style | |
| // | |
| int sum( int boundary ) | |
| { | |
| int i, sum = 0; | |
| for( i = 1; i <= boundary; i++ ) | |
| sum += 1; | |
| return sum; | |
| } | |
| % | |
| % Erlang | |
| % | |
| sum( Boundary ) -> sum_acc( 1, Boundary, 0 ). | |
| sum_acc(Index, Boundary, Sum) when Index =< Boundary -> | |
| sum_acc( Index + 1, Boundary, Sum + Index ); | |
| sum_acc( _I, _B, Sum + Index ) -> | |
| Sum. |
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