Accumulator factory: Difference between revisions
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|that are usually not nullable, such as int or real. |
|that are usually not nullable, such as int or real. |
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|In the following code we are telling EMal that int and real implement |
|In the following code we are telling EMal that int and real implement |
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|the Number virtual interface, so that it can only |
|the Number virtual interface, so that it can only |
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|accept null (because it's an interface), int, and real values. |
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type Number |
type Number allows int, real |
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type AccumulatorUsingNumber |
type AccumulatorUsingNumber |
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fun foo = fun by Number n |
fun foo = fun by Number n |
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for int i = 0; i < 2; ++i |
for int i = 0; i < 2; ++i |
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generic solution = solutions[i] |
generic solution = solutions[i] |
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writeLine("=== solution |
writeLine("=== solution " + (i + 1) + " ===") |
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fun x = :solution.foo(1) |
fun x = :solution.foo(1) |
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x(5) |
x(5) |
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{{out}} |
{{out}} |
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<pre> |
<pre> |
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=== solution |
=== solution 1 === |
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Org:RosettaCode:Number, Real: <8.3> |
Org:RosettaCode:Number, Real: <8.3> |
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Org:RosettaCode:Number, Integer: <8> |
Org:RosettaCode:Number, Integer: <8> |
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=== solution |
=== solution 2 === |
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Variable, Real: <8.3> |
Variable, Real: <8.3> |
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Variable, Integer: <8> |
Variable, Integer: <8> |
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