opengl error checking

gl.c

#include "gl.h"

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

void sgl_check_gl_error(const char *func, const char *file, int line)
{
	GLenum error = glGetError();
	bool had_error = false;

	while(error != GL_NO_ERROR)
	{
		had_error = true;

		char *err_msg = 0;
		switch(error)
		{
			case GL_INVALID_ENUM:
				err_msg = "GL_INVALID_ENUM error in function %s of %s:%i\n";
				break;
			case GL_INVALID_VALUE:
				err_msg = "GL_INVALID_VALUE error in function %s of %s:%i\n";
				break;
			case GL_INVALID_OPERATION:
				err_msg = "GL_INVALID_OPERATION error in function %s of %s:%i\n";
				break;
			case GL_OUT_OF_MEMORY:
				err_msg = "GL_OUT_OF_MEMORY error in function %s of %s:%i\n";
				break;
			case GL_STACK_OVERFLOW:
				err_msg = "GL_STACK_OVERFLOW error in function %s of %s:%i\n";
				break;
			case GL_STACK_UNDERFLOW:
				err_msg = "GL_STACK_UNDERFLOW error in function %s of %s:%i\n";
				break;
			case GL_TABLE_TOO_LARGE:
				err_msg = "GL_TABLE_TOO_LARGE error in function %s of %s:%i\n";
				break;
			default:
				err_msg = "Unknown error in function %s of %s:%i\n";
				break;
		}
		fprintf(stderr, err_msg, func, file, line);
		error = glGetError();
	}

	if(had_error)
		exit(1);
}

gl.h

#ifndef SGL_GL_H
#define SGL_GL_H

#include <GL/glew.h>

void sgl_check_gl_error();

#ifdef SGL_DEBUG

#define SGL_CHECK_GL(Func)									\
			Func; 											\
			sgl_check_gl_error(#Func, __FILE__, __LINE__);	\

#else
#define SGL_CHECK_GL
#endif

#endif