Singleton: Difference between revisions
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m (→{{header|Julia}}: an older version 0.4 version syntax example got marked as incorrect, so updated.) |
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=={{header|Julia}}== |
=={{header|Julia}}== |
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{{incorrect|Julia|ERROR: LoadError: syntax: extra token "IAmaSingleton" after end of expression}} |
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Julia allows singletons as type declarations without further specifiers. There can be only one instance of such a type, and if more than one variable is bound to such a type they are actually all bound to the same instance in memory: |
Julia allows singletons as type declarations without further specifiers. There can be only one instance of such a type, and if more than one variable is bound to such a type they are actually all bound to the same instance in memory: |
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<lang julia> |
<lang julia> |
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struct IAmaSingleton end |
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x = IAmaSingleton() |
x = IAmaSingleton() |
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