#include <iostream>
#include <string>
#include <iomanip> 
#include <math.h>   

using namespace std;
/*
ArithmeticsStrings Assignment
2021-09-17
Anthony Quintero

This program calculates the Arithmetics strings that are assigned by the instructor.
*/
int main() {
	//number bases

	int ibase;

	cout << "Please enter an integer to convert: "; cin >> ibase;
	cout << endl;

	cout << "Use iomainips to condition the stream" << endl;
	cout << "The entered integer in octal       form is: " << oct << ibase << endl;
	cout << "The entered integer hexademical    form is: " << hex << ibase << endl;
	cout << "THe entered integer in decimal     form is: " << dec << ibase << endl;
	cout << endl;

	cout << "Use iomainips setbase to format what follow in the stream" << endl;
	cout << "The entered integer in octal       form is: " << setbase(8) << ibase << endl;
	cout << "The entered in hexademical         form is: " << setbase(16) << ibase << endl;
	cout << "The enterd integer in decimal      form is: " << setbase(10) << ibase << endl;
	cout << endl << endl;

	int ishift01, ishift02;
	cout << "please enter an integer to shift to multiply by 4 : ";   cin >> ishift01;
	ishift02 = ishift01;
	cout << "This integer multiplied by 4 with left  shift binary operator is: " << (ishift01 << 2) << endl;
	cout << "This integer divided    by 4 with right shift binary operator is: " << (ishift02 >> 2) << endl;
	cout << endl << endl;

	//portability
	//char, short, int, unsigned, long, long long, bool, float, double 


	cout << "All sizes are in bytes : " << endl;
	cout << "char size:               " << sizeof(char) << endl;
	cout << "short size:              " << sizeof(short) << endl;
	cout << "int size:                " << sizeof(int) << endl;
	cout << "unsigned size:           " << sizeof(unsigned) << endl;
	cout << "long size                " << sizeof(long) << endl;
	cout << "long long size:          " << sizeof(long long) << endl;
	cout << "bool size:               " << sizeof(bool) << endl;
	cout << "float size:		 "      << sizeof(float) << endl;
	cout << "double size:             " << sizeof(double) << endl;
	cout << endl << endl;



	int ic;
	cout << "Please enter a number for a char : "; cin >> ic;
	char c = ic;
	cout << "character for the int c is : " << c << endl;
	cout << endl << endl;

	unsigned int uInt;
	cout << "Please enter a negative number : "; cin >> uInt;
	cout << "The unsigned int is : " << uInt;
	cout << endl << endl;

	//portability //asked a question about midterm 
	int i = 1;
	i = i / i++; //do not apply a post fix operatble with a variable, it will give you undefined 
	cout << "int i =1; i=i / i++" << endl << "i is " << i << endl;
	cout << endl << endl;

	i = 0;
	i = i * ++i;
	cout << "i = 0; i = i * ++i;" << endl << "The value for i is " << i << endl;

	i = 0;
	i = (i = i + 1) + (i = i + 2);
	cout << "i = 0; i = (i = i + 1) + (i = i + 2);" << endl << "The value for i is : " << i << endl;
	cout << endl << endl;

	bool a = true, b = false;
	a = (b == false) && (b++);
	cout << "bool a = true, b = false; a = (b = false) && (b++); :" << endl;
	cout << "a is " << a << endl;
	cout << "b is " << b << endl;
	cout << endl << endl;

	//calculations 
	int int01, int02;

	cout << "please enter a 1st integer : ";  cin >> int01;
	cout << "please enter a 2nd integer : ";  cin >> int02;
	cout << endl;

	cout << "The entered 1st integer is : " << int01 << endl;
	cout << "The entered 2nd integer is : " << int02 << endl;
	cout << endl;

	cout << "The sum of the two integers is :       " << (int01 + int02) << endl;
	cout << "The product of the two integer is :    " << (int01 * int02) << endl;
	cout << "The whole number quotient 1st/2nd is : " << (int01 / int02) << endl;
	cout << "The remainder of 1st/2nd is :          " << (int01 % int02) << endl;
	cout << "The float result of 1st/2nd is :       " << (int01 / (float)int02) << endl;
	cout << "The 1st to the power of the 2nd is :   " << (pow(int01, int02)) << endl;
	cout << endl << endl;

	float float01, float02;

	cout << "Please enter a 1st real number : "; cin >> float01;
	cout << "Please enter a 2nd real number :";  cin >> float02;
	cout << endl;

	cout << "The entered 1st real number is: : " << float01 << endl;
	cout << "The entered 2nd real number is: : " << float02 << endl;
	cout << endl;

	cout << "The sum of two real number is :              " << (float01 + float02) << endl;
	cout << "The product of the two real numbers is :     " << (float01 * float02) << endl;
	cout << "The quotient of 1st/2nd is :                 " << (float01 / float02) << endl;
	cout << "The whole number part of the 1st number is : " << ((int)float01) << endl;
	cout << "The whole number part of the 2nd number is : " << ((int)float02) << endl;
	cout << "The fractional part of the 1st number is   : " << (float01 - ((int)float02)) << endl;
	cout << endl << endl;

	int anInteger;
	cout << "Please enter an integer to convert to a float :  "; cin >> anInteger;

	cout << "The integer as a float is " << showpoint << (float)anInteger << endl;
	cout << endl;







	//strings 
	string string01, string02;

	cout << "Please enter 1st string : "; cin >> string01;
	cout << endl;

	cout << "The first string is :                   " << string01 << endl;
	cout << "The length of this string is :          " << string01.length() << endl;
	cout << "The first letter of this string is :    " << string01.at(0) << endl;
	cout << "The last letter of this string is :     " << string01.at(string01.length() - 1) << endl;
	cout << endl;

	cout << "Please enter a 2nd string : "; cin >> string02;
	cout << endl;

	cout << "The 1st string concentrated with 2nd string :                                " <<
		string01 + string02 << endl;

	cout << "The 1st string concentrated with the 2nd string with a space in between is : " <<
		string01 + " " + string02 << endl;
	cout << endl << endl;
} 
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Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
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}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

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case value2:    
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......    
    
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For loop is used to iterate a set of statements based on a condition.

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4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
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5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
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} while (condition); 

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}