Thread: Dev-Cpp Compliation Issues..

In Rect.hpp

Code:

#ifndef Rect_H
#define Rect_H
// Begin Rect.h
#include <cstdlib.h>
#include <iostream.h>

class Point{        // holds x,y coordinates
    //no constructor, using default
    public:
        void SetX(int x) { itsX = x; }
        void SetY(int y) { itsY = y; }
        int GetX() const { return itsX; }
        int GetY() const { return itsY; }
    private:
        int itsX;
        int itsY;
};      // end of Point Class declaration

class Rectangle{
    public:
        Rectangle(int top, int left, int bottom, int right);
        ~Rectangle() {}
    
        int GetTop() const {return itsTop; }
        int GetLeft() const {return itsLeft; }
        int GetRight() const {return itsRight; }
        int GetBottom() const {return itsBottom; }
    
        Point GetUpperLeft() const {return itsUpperLeft; }
        Point GetLowerLeft() const {return itsLowerLeft; }
        Point GetUpperRight() const {return itsUpperRight; }
        Point GetLowerRight() const {return itsLowerRight; }
    
        void SetUpperLeft(Point Location) {itsUpperLeft = Location;}
        void SetLowerLeft(Point Location) {itsLowerLeft = Location;}
        void SetUpperRight(Point Location) {itsUpperRight = Location;}
        void SetLowerRight(Point Location) {itsLowerRight = Location;}
    
        void SetTop(int top) { itsTop = top; }
        void SetLeft(int left) { itsLeft = left; }
        void SetRight(int right) {itsRight = right; }
        void SetBottom(int bottom) {itsBottom = bottom; }
    
        int GetArea() const;
    
    private:
        Point itsUpperLeft;
        Point itsUpperRight;
        Point itsLowerLeft;
        Point itsLowerRight;
        int itsTop;
        int itsLeft;
        int itsBottom;
        int itsRight;
};

#endif /*Rect_H*/

In main.cpp

Code:

#include "rect.hpp"

Rectangle::Rectangle(int top, int left, int bottom, int right){
    itsTop = top;
    itsRight = right;
    itsLeft = left;
    itsBottom = bottom;
    
    itsUpperLeft.SetX(left);
    itsUpperLeft.SetY(top);
    
    itsUpperRight.SetX(right);
    itsUpperRight.SetY(top);
    
    itsLowerLeft.SetX(left);
    itsLowerLeft.SetY(bottom);
    
    itsLowerRight.SetX(right);
    itsLowerRight.SetY(bottom);
}

// compute area of rectangle by finding corners,
// establish width and height then multiply (algebra lol)
int Rectangle::GetArea() const{
    int Width = itsRight - itsLeft;
    int Height = itsTop - itsBottom;
    return (Width * Height);
}

int main(){
    Rectangle MyRectangle (100, 20, 50, 80);
    
    int Area = MyRectangle.GetArea();
    
    cout << "Area: " << Area << "\n";
    cout << "Upper Left X Coordinate: "; 
    cout << MyRectangle.GetUpperLeft().GetX();
    
  
    return 0;
}

Output from compiler:

Compiler: Default compiler
Executing g++.exe...
g++.exe "Z:\Code\6.9.cpp" -o "Z:\Code\6.9.exe" -fverbose-asm -I"C:\Dev-Cpp\include\c++" -I"C:\Dev-Cpp\include\c++\mingw32" -I"C:\Dev-Cpp\include\c++\backward" -I"C:\Dev-Cpp\include" -L"C:\Dev-Cpp\lib"
In file included from Z:/Code/6.9.cpp:2:
Z:/Code/rect.hpp:4:21: cstdlib.h: No such file or directory
In file included from C:/Dev-Cpp/include/c++/backward/iostream.h:31,
from Z:/Code/rect.hpp:5,
from Z:/Code/6.9.cpp:2:
C:/Dev-Cpp/include/c++/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
Z:/Code/6.9.cpp: In function `int main()':
Z:/Code/6.9.cpp:32: `Rectangle' undeclared (first use this function)
Z:/Code/6.9.cpp:32: (Each undeclared identifier is reported only once for each
function it appears in.)
Z:/Code/6.9.cpp:32: parse error before `(' token
Z:/Code/6.9.cpp:34: `MyRectangle' undeclared (first use this function)

Execution terminated

Basically, I already declared Rectangle -- so I don't understand why it's saying undeclared. It compiles fine in MSVC according to a friend -- so is there some sort of software glitch this compiler might have? Or do you see something wrong w/ my code?

Originally Posted by major_small

take the .h off it... #include<cstdlib>

while you're at it, take the .h off the <iostream> and learn a little about the standard namespace...

standard namespace?

Actually, forget #include <cstdlib> -- that's not in my header anymore. I still get the error nonetheless.

Originally Posted by laserlight

Dev-C++ uses g++ 3.2 (MinGW) by default.
g++ happens to follow the standards more strictly than some versions of MSVC.

Despite being outdated, cprogramming.com does have an FAQ on C++ namespaces.

Well, I understand the tutorial on using namespaces -- you group a section of classes together and save on typing?

Utils::SomethingUseful::SomethingUseful() { void } blah whatever.

But I'm still scratching my head over as to why this isn't compiling.

Originally Posted by laserlight

hmm... not sure if Rectangle could be reserved by some (standard?) library or something.

Substitute Rect for all instances of Rectangle and try.
You'll still have to declare
using std::cout;
in your .cpp file though.

What does declaring using std::cout; do?

How would I declare it? (Noob here)

Originally Posted by laserlight

hmm... not sure if Rectangle could be reserved by some (standard?) library or something.

Substitute Rect for all instances of Rectangle and try.
You'll still have to declare
using std::cout;
in your .cpp file though.

Looks like the substitution did the trick. I guess Rectangle is reserved by some STL *scritches head*

You'd think they'd tell me these things.