glload and glfw errors

//ERROR: INCLUDING glload HEADERS IN THE SAME FILE AS glfw HEADERS CAUSES exit AND CONSTANTS LIKE gl_true AND g_falure TO BE UNDEFINED
#include "glload\gl_all.hpp"
#include "glload\gl_load.hpp"

#include "GLFW\glfw3.h"

#include <stdio.h>

static void error_callback(int error, const char* desc){
    fputs(desc, stderr);
}

static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods){
    if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
        glfwSetWindowShouldClose(window, GL_TRUE);
}

int main(void){
    GLFWwindow * window;

    glfwSetErrorCallback(error_callback);

    if (!glfwInit()){
        exit(EXIT_FAILURE);
    }

    window = glfwCreateWindow(640, 480, "A Window", NULL, NULL);

    if (!window){
        glfwTerminate();
        exit(EXIT_FAILURE);
    }

    glfwMakeContextCurrent(window);

    glfwSetKeyCallback(window, key_callback);

    glload::LoadTest loadTest = glload::LoadFunctions();
    if (!loadTest){
        glfwTerminate();
        exit(EXIT_FAILURE);
    }

    while (!glfwWindowShouldClose(window)){
        glfwPollEvents();
    }

    glfwDestroyWindow(window);

    glfwTerminate();
    exit(EXIT_SUCCESS);
}