v/vlib/compiler/cheaders.v

module compiler

const (
	c_common_macros = '

#define EMPTY_STRUCT_DECLARATION
#define EMPTY_STRUCT_INITIALIZATION 0
// Due to a tcc bug, the length of an array needs to be specified, but GCC crashes if it is...
#define EMPTY_ARRAY_OF_ELEMS(x,n) (x[])
#define TCCSKIP(x) x

#ifdef __TINYC__
#undef EMPTY_STRUCT_DECLARATION
#undef EMPTY_STRUCT_INITIALIZATION
#define EMPTY_STRUCT_DECLARATION char _dummy
#define EMPTY_STRUCT_INITIALIZATION 0
#undef EMPTY_ARRAY_OF_ELEMS
#define EMPTY_ARRAY_OF_ELEMS(x,n) (x[n])
#undef TCCSKIP
#define TCCSKIP(x)
#endif

// for __offset_of
#ifndef __offsetof
#define __offsetof(s,memb) \\
    ((size_t)((char *)&((s *)0)->memb - (char *)0))
#endif

#define OPTION_CAST(x) (x)
'
	c_headers = '

//#include <inttypes.h>  // int64_t etc
#include <stdio.h>  // TODO remove all these includes, define all function signatures and types manually
#include <stdlib.h>

//#include "fns.h"
#include <signal.h>
#include <stdarg.h> // for va_list
#include <string.h> // memcpy

#if INTPTR_MAX == INT32_MAX
    #define TARGET_IS_32BIT 1
#elif INTPTR_MAX == INT64_MAX
    #define TARGET_IS_64BIT 1
#else
    #error "The environment is not 32 or 64-bit."
#endif

#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ || defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN || defined(__BIG_ENDIAN__) || defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || defined(_MIBSEB) || defined(__MIBSEB) || defined(__MIBSEB__)
    #define TARGET_ORDER_IS_BIG
#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ || defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN || defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__) || defined(_M_AMD64) || defined(_M_X64) || defined(_M_IX86)
    #define TARGET_ORDER_IS_LITTLE
#else
    #error "Unknown architecture endianness"
#endif

#ifndef _WIN32
#include <ctype.h>
#include <locale.h> // tolower
#include <sys/time.h>
#include <unistd.h> // sleep
#endif

#if defined(__CYGWIN__) && !defined(_WIN32)
#error Cygwin is not supported, please use MinGW or Visual Studio.
#endif


#ifdef __linux__
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif

#ifdef __FreeBSD__
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif

#ifdef __DragonFly__
#include <sys/types.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif

#ifdef __OpenBSD__
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/wait.h> // os__wait uses wait on nix
#endif

#ifdef __NetBSD__
#include <sys/wait.h> // os__wait uses wait on nix
#endif

$c_common_macros

#ifdef _WIN32
#define WINVER 0x0600
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x0600
#define WIN32_LEAN_AND_MEAN
#define _UNICODE
#define UNICODE
#include <windows.h>

#include <io.h> // _waccess
#include <direct.h> // _wgetcwd
//#include <WinSock2.h>
#ifdef _MSC_VER
// On MSVC these are the same (as long as /volatile:ms is passed)
#define _Atomic volatile

// MSVC cannot parse some things properly
#undef EMPTY_STRUCT_DECLARATION
#undef OPTION_CAST

#define EMPTY_STRUCT_DECLARATION int ____dummy_variable
#define OPTION_CAST(x)

#include <dbghelp.h>
#pragma comment(lib, "Dbghelp.lib")

#endif

#else
#include <pthread.h>
#endif


//============================== HELPER C MACROS =============================*/
#define _PUSH(arr, val, tmp, tmp_typ) {tmp_typ tmp = (val); array_push(arr, &tmp);}
#define _PUSH_MANY(arr, val, tmp, tmp_typ) {tmp_typ tmp = (val); array_push_many(arr, tmp.data, tmp.len);}
#define _IN(typ, val, arr) array_##typ##_contains(arr, val)
#define _IN_MAP(val, m) map_exists(m, val)
#define DEFAULT_EQUAL(a, b) (a == b)
#define DEFAULT_NOT_EQUAL(a, b) (a != b)
#define DEFAULT_LT(a, b) (a < b)
#define DEFAULT_LE(a, b) (a <= b)
#define DEFAULT_GT(a, b) (a > b)
#define DEFAULT_GE(a, b) (a >= b)

// NB: macro_fXX_eq and macro_fXX_ne are NOT used 
// in the generated C code. They are here just for 
// completeness/testing.

#define macro_f64_eq(a, b) (a == b)
#define macro_f64_ne(a, b) (a != b)
#define macro_f64_lt(a, b) (a <  b)
#define macro_f64_le(a, b) (a <= b)
#define macro_f64_gt(a, b) (a >  b)
#define macro_f64_ge(a, b) (a >= b)

#define macro_f32_eq(a, b) (a == b)
#define macro_f32_ne(a, b) (a != b)
#define macro_f32_lt(a, b) (a <  b)
#define macro_f32_le(a, b) (a <= b)
#define macro_f32_gt(a, b) (a >  b)
#define macro_f32_ge(a, b) (a >= b)

//================================== GLOBALS =================================*/
byte g_str_buf[1024];
int load_so(byteptr);
void reload_so();

'
	js_headers = '

var array_string = function() {}
var array_byte = function() {}
var array_int = function() {}
var byte = function() {}
var double = function() {}
var int = function() {}
var f64 = function() {}
var f32 = function() {}
var i64 = function() {}
var i32 = function() {}
var i16 = function() {}
var u64 = function() {}
var u32 = function() {}
var u16 = function() {}
var i8 = function() {}
var bool = function() {}
var rune = function() {}
var map_string = function() {}
var map_int = function() {}

'
	c_builtin_types = '

//#include <inttypes.h>  // int64_t etc
//#include <stdint.h>  // int64_t etc

//================================== TYPEDEFS ================================*/

typedef int64_t i64;
typedef int16_t i16;
typedef int8_t i8;
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t byte;
typedef uint32_t rune;
typedef float f32;
typedef double f64;
typedef unsigned char* byteptr;
typedef int* intptr;
typedef void* voidptr;
typedef char* charptr;
typedef struct array array;
typedef struct map map;
typedef array array_string;
typedef array array_int;
typedef array array_byte;
typedef array array_f32;
typedef array array_f64;
typedef array array_u16;
typedef array array_u32;
typedef array array_u64;
typedef map map_int;
typedef map map_string;
#ifndef bool
	typedef int bool;
	#define true 1
	#define false 0
#endif
'
	bare_c_headers = '

$c_common_macros

#ifndef exit
#define exit(rc) sys_exit(rc)
void sys_exit (int);
#endif
'
)