T:/Eigene Dateien/Visual Studio 2008/Projects/VisLuFramework/src/utility.cpp

#include "utility.h"
#include <fstream>

#include <iostream>

#include "common.h"

bool file_exists(const string &filename)
{
        std::ifstream ifile(filename.c_str());
        return ifile.good();
}

string read_file(const string &filename)
{
        std::ifstream ifile(filename.c_str());

        return string(std::istreambuf_iterator<char>(ifile),
                std::istreambuf_iterator<char>());
}

void my_get_errors(const char *location)
{
        GLenum error = glGetError();

        if (error != GL_NO_ERROR) {
                cerr << "Error at " << location << ": "; 
                switch (error) {
                case GL_INVALID_ENUM:
                        cerr << "GL: enum argument out of range." << endl;
                        break;
                case GL_INVALID_VALUE:
                        cerr << "GL: Numeric argument out of range." << endl;
                        break;
                case GL_INVALID_OPERATION:
                        cerr << "GL: Operation illegal in current state." << endl;
                        break;
                case GL_STACK_OVERFLOW:
                        cerr << "GL: Stack overflow." << endl;
                        break;
                case GL_STACK_UNDERFLOW:
                        cerr << "GL: Stack underflow." << endl;
                        break;
                case GL_OUT_OF_MEMORY:
                        cerr << "GL: Not enough memory left to execute command." << endl;
                        break;
                default:
                        cerr << "GL: Unknown error." << endl;
                }
        }
}