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Auxilary classes to implement call by reference.

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pyCallBy

Auxilary classes to implement call by reference.

Python does not allow a user to distinguish between call-by-value and call-by-reference parameter passing. Python's standard types are passed by-value to a function or method. Instances of a class are passed by-reference (pointer) to a function or method.

By implementing a wrapper-class CallByRefParam, any types value can be passed by-reference. In addition, standard types like int or bool can be handled by derived wrapper-classes.

Example

# define a call-by-reference parameter for integer values
myInt = CallByRefIntParam()

# a function using a call-by-reference parameter
def func(param : CallByRefIntParam):
  param <<= 3

# call the function and pass the wrapper object
func(myInt)

print(myInt.value)

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License

This Python package (source code) licensed under Apache License 2.0.
The accompanying documentation is licensed under Creative Commons - Attribution 4.0 (CC-BY 4.0).


SPDX-License-Identifier: Apache-2.0

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