Call a function: Difference between revisions
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=={{header|M2000 Interpreter}}== |
=={{header|M2000 Interpreter}}== |
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==Standard Call of Modules/Functions== |
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In M2000 we can use arrays, functions and subroutines with same name. Using @ we can direct interpreter to use function. Using Gosub we direct interpreter to call a subroutine. These happen at module/function level. |
In M2000 we can use arrays, functions and subroutines with same name. Using @ we can direct interpreter to use function. Using Gosub we direct interpreter to call a subroutine. These happen at module/function level. |
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A Subroutine is code inside Modules/Functions where all definitions in module/function are visible. Modules and functions can call own modules/functions or global modules/functions. Functions can use recursion. Module with standard calling can't use recursion (need to use Call nameOfModule to call itself). |
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<lang M2000 Interpreter> |
<lang M2000 Interpreter> |
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Call Void CheckIt() |
Call Void CheckIt() |
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Call Void Function Checkit |
Call Void Function Checkit |
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\\ subs are part of modules/functions (there are no global subs, but there is a way to share definitions modules from parent module). |
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Module CheckSub { |
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M=1 |
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a(100) ' 400 |
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a(100) ' 800 |
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Module Child { |
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M=1 |
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a(100) ' 400 |
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a(100) ' 800 |
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} |
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Child |
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Sub a(x) |
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b(x*4) |
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M++ |
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End Sub |
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Sub b(x) |
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Print x*M |
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End Sub |
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} |
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CheckSub |
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</lang> |
</lang> |
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Print M=12 |
Print M=12 |
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</lang> |
</lang> |
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=={{header|Maple}}== |
=={{header|Maple}}== |
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