added ccwc word count tool , currently not reading from stdin

ccwc.cpp

@@ -0,0 +1,90 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+using namespace std;
+
+int numberOfBytes(string filename) {
+    ifstream file(filename);
+    if(!file) {
+        cerr << "Error Opening File " << filename << "\n";
+        return 1;
+    }
+    file.seekg(0, ios::end);
+    streamsize size = file.tellg();
+    return size;
+}
+
+int numberOfLines(string filename) {
+    ifstream file(filename);
+    if(!file) {
+        cerr << "Error Opening File " << filename << "\n";
+        return 1;
+    }
+    int lines = 0;
+    string line;
+    while(getline(file, line)) {
+        lines++;
+    }
+    return lines;
+}
+
+int numberOfWords(string filename) {
+    ifstream file(filename);
+    if(!file) {
+        cerr << "Error Opening File " << filename << "\n";
+        return 1;
+    }
+    string word;
+    int wordCount = 0;
+    while(file >> word) {
+        wordCount++;
+    }
+    return wordCount++;
+}
+
+int numberOfChars(string filename) {
+    ifstream file(filename);
+    if(!file) {
+        cerr << "Error Opening File " << filename << "\n";
+        return 1;
+    }
+    char ch;
+    int char_count = 0;
+    while(file.get(ch)) {
+        char_count++;
+    }
+    return char_count;
+}
+
+int main(int argc, char *argv[]) {
+    string option = argv[1];
+    string filename = argv[2];
+    ifstream file(filename);
+    if(!file) {
+        cerr << "Error Opening File " << filename << "\n";
+        return 1;
+    }
+    if(option == "-c") {
+        cout << " " <<  numberOfBytes(filename) << " " << filename << "\n";
+    } 
+    else if(option == "-l"){
+        cout << " " << numberOfLines(filename) << " " << filename << "\n";
+    }
+    else if(option == "-w") {
+        cout << " " << numberOfWords(filename) << " " << filename << "\n";
+    }
+    else if(option == "-m") {
+        cout << " " << numberOfChars(filename) << " " << filename << "\n";
+    }
+    else {
+        cout << numberOfLines(filename) << " " << numberOfWords(filename) << " " << numberOfBytes(filename) << " " << filename << endl;
+    }
+    return 0;
+
+} 
+
+/*In this step your goal is to support being able to read from standard input if no filename is specified. If you’ve done it right your output should match this:
+
+>cat test.txt | ccwc -l
+7145
+*/