Write a simple program that is able to read PPM image files. &bul...

Write a simple program that is able to read PPM image files.
• Input : PPM filename – the file will be used for file open in the program.
• Output : 3-dimensional array integer [][][] – width BY height BY 3 (RGB) :
Display (0, 0) --> (100, 101, 102) (0, 1) --> (100, 102, 95) (0, 2) --> (45, 104, 100) . . . (1, 0) --> (100, 99, 104) . . .
• Others : This program will be used for sub-program (class, object or function) of another program.
Do not specify the file format (ASCII, or BINARY), nor size of image.
The program should be able to recognize different magic number (P3 and P6).
In case of ‘P6’, return an error message.

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

/*
* File:   ppmreader.cpp
*
*
*
*/

#include <cstdlib>
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <cctype>
#include <locale>
#include<sstream>
using namespace std;

/*
*
*/

string <rim(std::string &s) {
       s.erase(s.begin(), find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
       return s;
}

string &rtrim(std::string &s) {
       s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
       return s;
}

string &trim(std::string &s) {
       return ltrim(rtrim(s));
}

int main(int argc, char** argv) {

    vector<string> v;
    string sLine = "";
    ifstream infile;...