我只看到這是由於在構建時沒有將它們的類對象鏈接在一起造成的,但我有,而且我不確定是什麼原因。對構造函數和析構函數的未定義引用
源:
//test.cpp
#include "Point.h"
#include "Sphere.h"
#include "Scene.h"
int main(){
Sphere s;
Scene sc;
sc.img_plane.upper_left = Point(-1, 1, -3);
sc.img_plane.upper_right = Point(1, 1, -3);
sc.img_plane.lower_left = Point(-1, -1, -3);
sc.img_plane.lower_right = Point(1, -1, -3);
sc.width = 100;
sc.height = 100;
return 0;
}
錯誤:
test.cpp:(.text+0x17): undefined reference to `Sphere::Sphere()'
test.cpp:(.text+0x26): undefined reference to `Scene::Scene()'
test.cpp:(.text+0x192): undefined reference to `Scene::~Scene()'
test.cpp:(.text+0x1a1): undefined reference to `Sphere::~Sphere()'
test.cpp:(.text+0x1bf): undefined reference to `Scene::~Scene()'
test.cpp:(.text+0x1d3): undefined reference to `Sphere::~Sphere()'
生成文件:
CC = g++
SRC = ./src
BUILD = ./build
main : main.o Point.o colort.o Sphere.o Scene.o Ray.o HitRecord.o
$(CC) $(BUILD)/main.o $(BUILD)/Point.o -o $(BUILD)/main
main.o : $(SRC)/test.cpp
$(CC) -c $< -o $(BUILD)/main.o
Point.o : $(SRC)/Point.cpp $(SRC)/Point.h
$(CC) -c $< -o $(BUILD)/Point.o
colort.o : $(SRC)/colort.cpp $(SRC)/colort.h
$(CC) -c $< -o $(BUILD)/colort.o
Sphere.o : $(SRC)/Sphere.cpp $(SRC)/Sphere.h $(SRC)/colort.cpp $(SRC)/Point.cpp
$(CC) -c $< -o $(BUILD)/Sphere.o
ImagePlane.o : $(SRC)/ImagePlane.cpp $(SRC)/ImagePlane.h
$(CC) -c $< -o $(BUILD)/ImagePlane.o
Scene.o : $(SRC)/Scene.cpp $(SRC)/Scene.h
$(CC) -c $< -o $(BUILD)/Scene.o
Ray.o : $(SRC)/Ray.cpp $(SRC)/Ray.h
$(CC) -c $< -o $(BUILD)/Ray.o
HitRecord.o : $(SRC)/HitRecord.cpp $(SRC)/HitRecord.h
$(CC) -c $< -o $(BUILD)/HitRecord.o
clean :
rm $(BUILD)/*
test : main
$(BUILD)/main
場景構造是一樣的球形:
Sphere.h :
#ifndef SPHERE_H_
#define SPHERE_H_
#include "colort.h"
#include "Point.h"
#include "Ray.h"
class Sphere {
public:
Sphere();
virtual ~Sphere();
Point center;
double radius;
color_t diffuse, specular;
double intersection(Ray r);
};
#endif /* SPHERE_H_ */
Sphere.cpp:
#include "Sphere.h"
#include <math.h>
Sphere::Sphere() {
}
Sphere::~Sphere() {
}
...other class functions
我在makefile中的任何地方都看不到'test.cpp'。你如何評價? – us2012 2013-02-10 22:29:47
我忘了發貼,現在是在問題中 – AdamSpurgin 2013-02-10 22:30:32
還有些遺漏;什麼時候test.cpp得到編譯?這是產生錯誤信息的那個人。 – 2013-02-10 22:32:42