Header File for Arithmetic Expressions

Introduction

A header file written in C language for interconversion and evaluation of prefix, postfix and infix expressions.

Features

The header file includes:

4 types of evaluation functions
6 types of conversion functions
And, 8 auxiliary functions

Run Locally

To run the project locally,

Clone the project

git clone https://github.com/Fredorixo/arithmetic-expressions.git

Go to the project directory

cd arithmetic-expressions

To compile your main.c file, run the following command in your terminal

gcc main.c stack.c arithexp.c aux_func.c

This will include stack.c, arithexp.c and aux_func.c source files that contain the implementations of stack.h and arithexp.h header files.

Run your generated executable file

.\a.exe

Usage/Examples

A main.c file is included in the project which contains the usage of all the functions.

Make sure to always use CheckUnary() first before using the any of the converting or evaluating functions.

Before reusing a char array with a stored expression, make sure to empty it.

Expression Conversion

#include "arithexp.h"

// For storing the result
char resultantExpression[200] = "";
char prefixExpression[200] = "";

CheckUnary("Your Arithmetic Expression", resultantExpression);
InfixToPrefix(resultantExpression, prefixExpression);
PrintString(resultantExpression);

Expression Evaluation

#include "arithexp.h"

// For storing the result
char resultantExpression[200] = "";

CheckUnary("Your Arithmetic Expression", resultantExpression);
EvaluateUsingPostfix(resultantExpression);
PrintString(resultantExpression);