Phillip Trudeau pmttavara

Formerly Happenlance, now WhiteBox and All Out; side project is a Silent Hill 2 level editor. Trying to stay positive!

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pmttavara / good_assert.h

Last active May 18, 2023 12:33

Better assert() for Windows - public domain

	#ifndef good_assert /* Better assert() for Windows - public domain */
	#ifdef _WIN32
	#ifdef __cplusplus
	extern "C" {
	#endif
	#ifndef _WINDOWS_
	__declspec(dllimport) int __stdcall ExitProcess(unsigned int a);
	__declspec(dllimport) int __stdcall MessageBoxA(void a, const char b,
	const char *c, unsigned int d);
	#endif /* _WINDOWS_ */

pmttavara / defer.hpp

Created March 25, 2018 07:27

The definitive defer implementation for C++. Syntax: defer { statements; };

	#ifndef defer
	struct defer_dummy {};
	template <class F> struct deferrer { F f; ~deferrer() { f(); } };
	template <class F> deferrer<F> operator*(defer_dummy, F f) { return {f}; }
	#define DEFER_(LINE) zz_defer##LINE
	#define DEFER(LINE) DEFER_(LINE)
	#define defer auto DEFER(__LINE__) = defer_dummy{} *[&]()
	#endif // defer

pmttavara / readme.txt

Last active December 7, 2018 10:27

eddems (PuzzleScript Script)

Play this game by pasting the script in http://www.puzzlescript.net/editor.html

pmttavara / dead_simple_debug_allocator.c

Created March 31, 2019 07:33

Debug allocator that catches leaks, use-after-free, double-free, buffer overrun, invalid/mismatched free. Windows x64. Simple but slow (no page reuse).

	// libs: Kernel32.lib User32.lib DbgHelp.lib msvcrt.lib (unless you have your own printf)
	// includes: Windows.h (LEAN_AND_MEAN is ok) WinUser.h DbgHelp.h stdio.h

	// call SymInitialize() at startup and debug_check_leaks at shutdown

	#ifndef NDEBUG

	static void print_stack_trace(void *stack, u64 stack_count, const char indent) {
	struct {
	SYMBOL_INFO si;

pmttavara / hello_world.c

Created April 10, 2019 06:53

Simple C Win32 Hello World program without preprocessor directives or library imports. Build with `cl *.c`.

	__pragma(comment(linker, "/entry:main"));
	__pragma(comment(linker, "/subsystem:console"));

	void (GetProcAddress)(void module, const char name);
	void (LoadLibraryA)(const char *name);
	void (*ExitProcess)(unsigned int return_code);
	int (MessageBoxA)(void hWnd, const char lpText, const char lpCaption, unsigned int uType);

	static inline void load_proc(void lib, void fn, char *name) {
	(void *)fn = GetProcAddress(lib, name);

pmttavara / X_macro_call_by_name.cpp

Last active June 27, 2019 10:09

(for Ryan Fleury's stream) Variant of the X macro that doesn't require undefinition or redefinition of macros.


	// Whatever, just example instructions.
	#define INSTRUCTION_TYPE_LIST(instruction_type) \
	instruction_type(push, sizeof(u32)) \
	instruction_type(pop, sizeof(u32)) \
	instruction_type(move, sizeof(u32 ) + sizeof(u32 ))

	// Examples of usage (I didn't quite catch what the real usage was):
	#define instruction_enum_name(name, size) Instruction_Type_ ## name,
	#define instr_size(name, size) (size_t)size,

pmttavara / virtual_array.cpp

Last active December 29, 2019 01:26

Virtual allocated array template

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

	#define WIN32_LEAN_AND_MEAN
	#define VC_EXTRALEAN
	#include <windows.h>

	template <class T> struct Virtual_Array {

pmttavara / ogl_load.c

Created January 2, 2020 08:37

OpenGL 1.0 loader in Win32

	static const char *const GL_funcnames[] = {
	"wglDeleteContext",
	"wglUseFontBitmapsA",
	"wglSwapIntervalEXT",
	"glGetError",
	"glBlendFunc",
	"glEnable",
	"glDisable",
	"glViewport",
	"glVertex3f",

pmttavara / enum_strings.cpp

Last active January 6, 2024 12:42

Using "functional X macro" for metaprogramming-like enum name extraction

	#include <string.h> // for strcmp

	#define Enum_Member(Name, Value) Name = Value,

	#define Enum_To_String(Name, Value) if (e == Name) return # Name;

	#define Enum_From_String(Name, Value) if (strcmp(str, # Name) == 0) return Name;

	#define Define_Enum(EnumName) \
	\

pmttavara / allocator.h

Created February 27, 2021 06:04

Allocator abstraction that works for most use cases, according to Andrei Alexandrescu (+ Jon Blow)

	#ifdef __cplusplus
	extern "C" {
	#endif

	typedef struct Memory_Block {
	uint8_t *data;
	size_t num_bytes;
	} Memory_Block;

	typedef enum Allocator_Mode {

OlderNewer

	__pragma(comment(linker, "/entry:main"));
	__pragma(comment(linker, "/subsystem:console"));

	void (GetProcAddress)(void module, const char name);
	void (LoadLibraryA)(const char *name);
	void (*ExitProcess)(unsigned int return_code);
	int (MessageBoxA)(void hWnd, const char lpText, const char lpCaption, unsigned int uType);

	static inline void load_proc(void lib, void fn, char *name) {
	(void *)fn = GetProcAddress(lib, name);