C++ error when using GLFW calls -


i've been learning program in c++ recently, i've run problem when using glew , glfw.

source (.cpp):

#include<iostream> #define glew_static #include "glew/glew.h" #include <glfw/glfw3.h>  int main(){     std::cout<<"test";      glfwwindow* window;     window = glfwcreatewindow(800,600,"test", glfwgetprimarymonitor(),null);      return 0; }

this program compiles no errors, when run, no output generated despite std::cout. however, glfwcreatewindow call commented out, program shows output should.

i'm extremely confused , know if there's can fix it.

edit: doubt it's problem std::cout, because when try showing window so, still no response program.

glfwshowwindow(window); while(!glfwwindowshouldclose(window))glfwpollevents(); glfwdestroywindow(window);

edit 2: here code of now:

#define glew_static #include "glew/glew.h" #include <glfw/glfw3.h> #include <iostream>  int main(){     std::cout<<"test" << std::endl;     glfwinit();      glfwwindow* window;     window = glfwcreatewindow(800,600,"test", null, null);      glfwshowwindow(window);     while(!glfwwindowshouldclose(window))glfwpollevents();     glfwdestroywindow(window);     glfwterminate();     std::cin.get(); }

edit 3: title

edit 4: after experimentation, i've found mention of glfw call in source file seems prevent program running. following generates no output:

int main(){     std::cout<<"test" << std::endl;      std::cout.flush();      std::cin.get(); } void test(){     glfwinit();      glfwwindow* window;     window = glfwcreatewindow(800,600,"test", null, null);      glfwshowwindow(window);     while(!glfwwindowshouldclose(window))glfwpollevents();     glfwdestroywindow(window);     glfwterminate();  }

some reasons no output on stdout:

  • if running on windows, program may have been compiled within windows subsystem. then, print stdout go bitbucket. if using mingw toolchain, controlled -mwindows linker flag
  • if program crashes, buffered output may not written. therefore, try flush output stream before doing else. note programs may crash silently.

some things can ask find out more:

  • what happens when step through code debugger shipped compiler?
  • since glfwcreatewindow hid output, maybe crashes inside function. did pass correct arguments?
  • does glfwcreatewindow return valid pointer?

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