[CPP] Add simple cin

Author: scopeInfinity

src/usr/include/iostream.h

@@ -13,6 +13,14 @@ class ostream {
     ostream& operator<<(const int num);
 };
 
+class istream {
+public:
+    istream& operator>>(char &c);
+    istream& operator>>(char *str);
+    istream& operator>>(int &num);
+};
+
 extern ostream cout;
+extern istream cin;
 
 }  // namespace std end

src/usr/lib/iostream.cpp

@@ -1,13 +1,18 @@
 #include <iostream.h>
 #include <stdio.h>
+#include <conio.h>
 
 namespace std {
 
 const char endl = '\n';
 ostream cout;
+istream cin;
 
 ostream& ostream::operator<<(const char c) { putchar(c); return *this; }
 ostream& ostream::operator<<(const char *str) { puts(str); return *this; }
 ostream& ostream::operator<<(const int num) { printf("%d", num); return *this; }
 
+istream& istream::operator>>(char &c) { c = getch(); putchar(c); return *this; }
+istream& istream::operator>>(char *str) { gets(str); return *this; }
+
 }  // namespace std end

src/usr/local/src/logo.cpp

@@ -1,4 +1,5 @@
 // logo program
+#include <iostream.h>
 #include <stdio.h>
 #include <conio.h>
 #include <graphics.h>
@@ -46,7 +47,7 @@ int main(int argc,char *argv[]) {
     std::graphics::initgraph(&gd, &gm, NULL);
     int gerr = std::graphics::graphresult();
     if (gerr != 0) {
-        std::printf("failed to open graphics mode, err: %d", gerr);
+        std::cout << "failed to open graphics mode, err: " <<  gerr << std::endl;
         return 1;
     }
     logo();

src/usr/local/src/simplecpp.cpp

@@ -1,5 +1,4 @@
 // Simple C++ program
-
 #include <stdio.h>
 #include <iostream.h>
 
@@ -50,12 +49,20 @@ void printShapeDetails(geometry::Shape *shape) {
     std::cout << " - Name: " << shape->getName() << std::endl;
     std::cout << " - Area: " << (int)shape->getArea() << std::endl;
 }
-
+#include <string.h>
 int main(int argc, char *argv[]) {
+    // shapes
+
     geometry::Rectangle r1("R1", 10, 20);
     geometry::Square s1("S1", 50);
 
     printShapeDetails(&r1);
     printShapeDetails(&s1);
+
+    // name
+    char name[1024];
+    std::cout << "Enter your name: ";
+    std::cin >> name;
+    std::cout << "Your name is: " << name << std::endl;
     return 0;
 }