Address of a variable: Difference between revisions
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From version 12, VarPtr() can return address for variables and array items. |
From version 12, VarPtr() can return address for variables and array items. |
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We can't set an address to a variable. We can link a variable name with an existing variable. |
We can't set an address to a variable. We can link a variable name with an existing variable. Is the same as passing by reference. |
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<syntaxhighlight lang="m2000 interpreter"> |
<syntaxhighlight lang="m2000 interpreter"> |
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print k(1,0,1)=x |
print k(1,0,1)=x |
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link z to m |
link z to m |
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print VarPtr(z)=VarPtr(m) |
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checkref(&z) |
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sub checkref(&p) |
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print VarPtr(z)=VarPtr(p) |
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end sub |
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} |
} |
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checkVarptr |
checkVarptr |
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{{out}} |
{{out}} |
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<pre> |
<pre> |
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True |
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True |
True |
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True |
True |
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