Bartłomiej Filipek fenbf

Software developer with a technical blog about C++ .

fenbf / LegacySinkAndUniquePtr.cpp

Last active September 20, 2016 13:27

	// compile at https://godbolt.org/g/yb47Aq
	//

	#include <iostream>
	#include <memory>

	class Widget
	{
	public:
	void DoStuff() { }

fenbf / smart_ptr_deleters.cpp

Last active February 24, 2021 06:23

	// smart_ptr_deleters.cpp
	// shows how to use custom deleters with unique_ptr and shared_ptr
	// Bartlomiej Filipek, April 2016, bfilipek.com

	#include <iostream>
	#include <memory>
	#include <functional>
	#include <cassert>

	// This class cannot be changed, might come from 3rd party library

fenbf / HasToString.cpp

Last active February 24, 2021 04:34

	template <typename T>
	class HasToString
	{
	private:
	typedef char YesType[1];
	typedef char NoType[2];

	template <typename C> static YesType& test( decltype(&C::ToString) ) ;
	template <typename C> static NoType& test(...);

fenbf / sfinae_tostring_ex.cpp

Created February 9, 2016 20:33

C++ SFINAE example: how to detect if a class contains ToString method

	// SFINAE, enable_if example
	// based on http://stackoverflow.com/questions/257288/is-it-possible-to-write-a-c-template-to-check-for-a-functions-existence


	#include <iostream>
	#include <type_traits>

	class ClassWithToString
	{
	public:

fenbf / dbgheap.cpp

Created July 22, 2015 10:35

	// simple perf test for memory allocations
	// bfilipek.com

	#include <iostream>
	#include <memory>
	#include <vector>
	#include <chrono>

	int main()
	{

fenbf / glParticleRenderer.cpp

Last active February 4, 2018 00:02

particle rendering 'system'.

	#include "glParticleRenderer.h"
	#include "particles.h"

	#include <assert.h>
	#include "gl_includes.h"

	namespace particles
	{
	void GLParticleRenderer::generate(ParticleSystem *sys, bool)
	{

fenbf / ParticleUpdaters.cpp

Created June 5, 2014 18:37

Particle Updaters

	namespace updaters
	{
	void EulerUpdater::update(double dt, ParticleData *p)
	{
	const glm::vec4 globalA{ dt * m_globalAcceleration.x, dt * m_globalAcceleration.y, dt * m_globalAcceleration.z, 0.0 };
	const float localDT = (float)dt;

	const unsigned int endId = p->m_countAlive;
	for (size_t i = 0; i < endId; ++i)
	p->m_acc[i] += globalA;

fenbf / BasicParticleGenerators.cpp

Created May 12, 2014 15:48

Basic Particle Generators modules

	#include "particleGenerators.h"
	#include <assert.h>
	#include <algorithm>
	#include <glm/common.hpp>
	#include <glm/gtc/random.hpp>

	namespace particles
	{
	namespace generators
	{

fenbf / BasicParticleUpdaters.cpp

Created May 12, 2014 15:44

Basic Particle Update modules

fenbf / BasicParticles.cpp

Created April 27, 2014 05:47

Basic Particle classes design. Used as a starting point for my particle system. More details http://www.bfilipek.com

	#include "particles.h"
	#include <assert.h>
	#include <algorithm>

	namespace particles
	{
	void ParticleData::generate(size_t maxSize)
	{
	m_count = maxSize;
	m_countAlive = 0;