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25 lines
817 B
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25 lines
817 B
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.. highlight:: c
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FAQ
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======
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How do I iterate on my array ?
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-----------------------------------
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There are different way to iterate on the element of an array, recommended in this order from the most simple/efficient to the most complex/slow :
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* To assign data into an array, the simplest and efficient way is to use
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automatic assignment with lazy expressions, Cf :ref:`Lazy`.
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* For a more general case, where one does not simply assign a value to the array element,
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use a *foreach* construct, Cf :ref:`Foreach`.
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* You can use STL algorithms, since arrays have STL compliant iterators.
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The performance may be lower than *foreach* loops (never better anyhow).
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* Of course, one can still use a simple for loop, but this is not recommended in general
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since it is more error prone and less optimal.
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