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-*- mode: outline; coding: utf-8 -*-
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* Caller vs callee.
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If routine A calls routine B then routine A is the caller and routine B is the
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callee. i.e. the caller is the routine which is calling the callee.
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The routine that initiates the call is the caller and the routine that is
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being called is is the callee.
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* Argument vs parameter.
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From the perspective of the caller the thing which is passed is an argument.
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From the perspective of the routine that receives the call, i.e. the callee,
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the thing which is passed is a parameter.
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