STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
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Chapter 14, Problem 11PC
Program Plan Intro
Prefix to Infix
Program Plan:
- Include required header files.
- Give function prototype “prefix_To_Infix ()”.
- Define the function “main ()”. Inside this function,
- Declare a string variable “prefixStr”.
- Get the prefix string from the user and store it in a variable “prefixStr”.
- Do until the length of the string is equal to 0 using “while” loop.
- Create an object “isStream” for input file stream.
- Call the function “prefix_To_Infix ()” by passing the object “isStream” as the argument.
- Get another prefix string from the user.
- Return the statement.
- Give function definition for “prefix_To_Infix ()”.
- Get the first character and store it in a variable “ch”.
- Do until the variable “ch” detects a space using “while” loop.
- Get a character using “get ()” function.
- Get the first character using “peek ()” function.
- Check if the character is a digit.
- Declare a variable “num”.
- Create an object “ostr” from output string stream.
- Get and print the number.
- Return the object.
- Else,
- Get the character using “get ()” function and store it in a variable “ch”.
- Call the function “prefix_To_Infix ()” and store the returned expression in a string variable “expr1”.
- Call the function “prefix_To_Infix ()” and store the returned expression in a string variable “expr2”.
- Check if the character is not any mathematical symbol like “+”, “-”, “*” and “/”.
- Exit.
- Return “expr1”, “ch”, and “expr2” .
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Chapter 14 Solutions
STARTING OUT WITH C++ MPL
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