I created an XCode project using SFML template project. This works, but not on my project. Precompiled headers might interfere, but I don't think so. On my project, even using specialized operator for each vector2f, vector2u and vector2i doesn't compile.
ttsty.h
#ifndef __testapp__ttsty__
#define __testapp__ttsty__
#include <SFML/Audio.hpp>
#include <SFML/Graphics.hpp>
#include <iostream>
using namespace std;
using namespace sf;
template<typename Type>
ostream& operator<<(ostream& os,const sf::Vector2<Type>& rhs)
//;
{
os.precision(2);
return os<<'['<<rhs.x<<", "<<rhs.y<<']';
}
#endif /* defined(__testapp__ttsty__) */
ttsty.cpp
// nothing
main.cpp
//
// Disclamer:
// ----------
//
// This code will work only if you selected window, graphics and audio.
//
// Note that the "Run Script" build phase will copy the required frameworks
// or dylibs to your application bundle so you can execute it on any OS X
// computer.
//
// Your resource files (images, sounds, fonts, ...) are also copied to your
// application bundle. To get the path to these resource, use the helper
// method resourcePath() from ResourcePath.hpp
//
#include <SFML/Audio.hpp>
#include <SFML/Graphics.hpp>
// Here is a small helper for you ! Have a look.
#include "ResourcePath.hpp"
#include "ttsty.h"
int main(int, char const**)
{
cout << Vector2f(432,3422);
// Create the main window
sf::RenderWindow window(sf::VideoMode(800, 600), "SFML window");
// Set the Icon
sf::Image icon;
if (!icon.loadFromFile(resourcePath() + "icon.png")) {
return EXIT_FAILURE;
}
window.setIcon(icon.getSize().x, icon.getSize().y, icon.getPixelsPtr());
// Load a sprite to display
sf::Texture texture;
if (!texture.loadFromFile(resourcePath() + "cute_image.jpg")) {
return EXIT_FAILURE;
}
sf::Sprite sprite(texture);
// Create a graphical text to display
sf::Font font;
if (!font.loadFromFile(resourcePath() + "sansation.ttf")) {
return EXIT_FAILURE;
}
sf::Text text("Hello SFML", font, 50);
text.setColor(sf::Color::Black);
// Load a music to play
// sf::Music music;
// if (!music.openFromFile(resourcePath() + "nice_music.ogg")) {
// return EXIT_FAILURE;
// }
// Play the music
// music.play();
// Start the game loop
while (window.isOpen())
{
// Process events
sf::Event event;
while (window.pollEvent(event))
{
// Close window : exit
if (event.type == sf::Event::Closed) {
window.close();
}
// Escape pressed : exit
if (event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::Escape) {
window.close();
}
}
// Clear screen
window.clear();
// Draw the sprite
window.draw(sprite);
// Draw the string
window.draw(text);
// Update the window
window.display();
}
return EXIT_SUCCESS;
}
If I put the body of the function in the header, I get this linking error:
"std::__1::basic_ostream<char, std::__1::char_traits<char> >& operator<<<float>(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, sf::Vector2<float> const&)", referenced from:
In my project, if I put it in the header like it work inside my project, I get those linking errors:
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/quadtree.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/main.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/pathfinding.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/ptdistr.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/bars.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/game.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/sandbox.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/misc.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/spacepart.o
duplicate symbol __ZlsRNSt3__113basic_ostreamIcNS_11char_traitsIcEEEERK6b2Vec2 in:
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/perlin.o
/Users/eio/Library/Developer/Xcode/DerivedData/oikoneme-fitkqpenpxxapogrbeidhlriixyt/Build/Intermediates/oikoneme.build/Debug/oikoneme.build/Objects-normal/x86_64/pathfinding2.o
ld: 10 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)