So I've been following a tutorial and when I tried to compile the below code:
#include <glut.h>
#include <iostream>
void render(void);
void keyboard(unsigned char c, int x, int y);
void mouse(int button, int state, int x, int y);
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowPosition(100, 100);
glutInitWindowSize(640, 480);
glutCreateWindow("Test GLUT App");
glutDisplayFunc(render); // render
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop(); // initialization finished. start rendering
}
void render(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glColor3f(0.5, 0.2, 0.9);
glVertex2f(-0.5, -0.5);
glColor3f(0.1, 0.2, 0.5);
glVertex2f(0.0, -0.5);
glColor3f(0.3, 0.9, 0.7);
glVertex2f(0.0, 0.5);
glEnd();
glutSwapBuffers();
}
void keyboard(unsigned char c, int x, int y)
{
if(c == 27)
{
exit(0);
}
}
void mouse(int button, int state, int x, int y)
{
if(button == GLUT_RIGHT_BUTTON)
{
exit(0);
}
}
I get 3 errors out of nowhere:
Error 1 error C2381: 'exit' : redefinition; __declspec(noreturn) differs c:\\program files (x86)\\microsoft visual studio 10.0\\vc\\include\\stdlib.h 353
Error 2 error C3861: 'exit': identifier not found ....main.cpp 45
Error 3 error C3861: 'exit': identifier not found ....main.cpp 53
Does anyone see why this error appears? Im using VS2010.
You need to #include <cstdlib>
.
edit:
You are probably following a very known tutorial that provides a header file for you.
This will help you then GLUT exit redefinition error
如果您的Visual Studio抛出构建错误,提示IntelliSense无法识别“退出”,则您必须包含process.h
Try adding using namespace std
to the top. I'm not sure if this will fix it but i had a similar error earlier and that fixed it. good luck.
u need to declare header simple as work , works in my comp
#include <stdlib.h>
#include <cstdlib>
#include <glut.h>
#include <iostream>
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