Problem Solving with C++ (9th Edition)
Problem Solving with C++ (9th Edition)
9th Edition
ISBN: 9780133591743
Author: Walter Savitch
Publisher: PEARSON
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Chapter 5.3, Problem 16STE
Program Plan Intro

Functions calling functions:

  • A function body can contain a call to another function.
  • It acts as same as if called from a main function.
  • The declaration for function should appear before usage of function.
  • In programs all function declarations come after main function.
  • A function call can be placed within another function’s definition.
  • The definition of one function could not be placed within body of definition of another function.

Precondition and Post conditions:

  • A function declaration comment can be written as two types of information that is precondition and post condition.
  • When a function is called, the precondition states conditions to be true.
  • The function could not be used or perform correctly unless precondition holds.
  • The post condition describes function call effect; it states conditions to be true after execution of function where precondition holds.
  • The post condition describes value returned by function if it returns one.
  • The post condition describes changes made to argument values for a function that may change values of variables.

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Problem Solving with C++ (9th Edition)

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