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OpenTTD-patches/src/stdafx.h

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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file stdafx.h Definition of base types and functions in a cross-platform compatible way. */
#ifndef STDAFX_H
#define STDAFX_H
#ifdef _MSC_VER
/* Stop Microsoft (and clang-cl) compilers from complaining about potentially-unsafe/potentially-non-standard functions */
# define _CRT_SECURE_NO_DEPRECATE
# define _CRT_SECURE_NO_WARNINGS
# define _CRT_NONSTDC_NO_WARNINGS
#endif
#if defined(__APPLE__)
# include "os/macosx/osx_stdafx.h"
#endif /* __APPLE__ */
#if defined(__HAIKU__)
# include <SupportDefs.h>
# include <unistd.h>
# define _GNU_SOURCE
# define TROUBLED_INTS
#endif
#if defined(__HAIKU__) || defined(__CYGWIN__)
# include <strings.h> /* strncasecmp */
#endif
/* It seems that we need to include stdint.h before anything else
* We need INT64_MAX, which for most systems comes from stdint.h. However, MSVC
* does not have stdint.h.
* For OSX the inclusion is already done in osx_stdafx.h. */
#if !defined(__APPLE__) && (!defined(_MSC_VER) || _MSC_VER >= 1600)
# if defined(SUNOS)
/* SunOS/Solaris does not have stdint.h, but inttypes.h defines everything
* stdint.h defines and we need. */
# include <inttypes.h>
# else
# define __STDC_LIMIT_MACROS
# include <stdint.h>
# endif
#endif
/* The conditions for these constants to be available are way too messy; so check them one by one */
#if !defined(UINT64_MAX)
# define UINT64_MAX (18446744073709551615ULL)
#endif
#if !defined(INT64_MAX)
# define INT64_MAX (9223372036854775807LL)
#endif
#if !defined(INT64_MIN)
# define INT64_MIN (-INT64_MAX - 1)
#endif
#if !defined(UINT32_MAX)
# define UINT32_MAX (4294967295U)
#endif
#if !defined(INT32_MAX)
# define INT32_MAX (2147483647)
#endif
#if !defined(INT32_MIN)
# define INT32_MIN (-INT32_MAX - 1)
#endif
#if !defined(UINT16_MAX)
# define UINT16_MAX (65535U)
#endif
#if !defined(INT16_MAX)
# define INT16_MAX (32767)
#endif
#if !defined(INT16_MIN)
# define INT16_MIN (-INT16_MAX - 1)
#endif
#if !defined(UINT8_MAX)
# define UINT8_MAX (255)
#endif
#if !defined(INT8_MAX)
# define INT8_MAX (127)
#endif
#if !defined(INT8_MIN)
# define INT8_MIN (-INT8_MAX - 1)
#endif
#include <cstdio>
#include <cstddef>
#include <cstring>
#include <cstdlib>
#include <climits>
#include <cassert>
#include <memory>
#ifndef SIZE_MAX
# define SIZE_MAX ((size_t)-1)
#endif
#if defined(UNIX) || defined(__MINGW32__)
# include <sys/types.h>
#endif
#if defined(__OS2__)
# include <types.h>
# define strcasecmp stricmp
#endif
#if defined(SUNOS) || defined(HPUX) || defined(__CYGWIN__)
# include <alloca.h>
#endif
/* Stuff for GCC */
#if defined(__GNUC__) || defined(__clang__)
#define NORETURN __attribute__ ((noreturn))
#define CDECL
#define __int64 long long
/* Warn about functions using 'printf' format syntax. First argument determines which parameter
* is the format string, second argument is start of values passed to printf. */
#define WARN_FORMAT(string, args) __attribute__ ((format (printf, string, args)))
#define FINAL final
/* Use fallthrough attribute where supported */
#if __GNUC__ >= 7
#if __cplusplus > 201402L // C++17
#define FALLTHROUGH [[fallthrough]]
#else
#define FALLTHROUGH __attribute__((fallthrough))
#endif
#else
#define FALLTHROUGH
#endif
#endif /* __GNUC__ || __clang__ */
#if defined(__WATCOMC__)
# define NORETURN
# define CDECL
# define WARN_FORMAT(string, args)
# define FINAL
# define FALLTHROUGH
# include <malloc.h>
#endif /* __WATCOMC__ */
#if defined(__MINGW32__)
# include <malloc.h> // alloca()
#endif
#if defined(_WIN32)
# define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#endif
/* Stuff for MSVC */
#if defined(_MSC_VER)
# pragma once
# ifdef _WIN64
/* No 64-bit Windows below XP, so we can safely assume it as the target platform. */
# define NTDDI_VERSION NTDDI_WINXP // Windows XP
# define _WIN32_WINNT 0x501 // Windows XP
# define _WIN32_WINDOWS 0x501 // Windows XP
# define WINVER 0x0501 // Windows XP
# define _WIN32_IE_ 0x0600 // 6.0 (XP+)
# else
/* Define a win32 target platform, to override defaults of the SDK
* We need to define NTDDI version for Vista SDK, but win2k is minimum */
#define NTDDI_VERSION NTDDI_WIN2K // Windows 2000
#define _WIN32_WINNT 0x0500 // Windows 2000
#define _WIN32_WINDOWS 0x400 // Windows 95
#define WINVER 0x0400 // Windows NT 4.0 / Windows 95
#define _WIN32_IE_ 0x0401 // 4.01 (win98 and NT4SP5+)
#endif
#define NOMINMAX // Disable min/max macros in windows.h.
#pragma warning(disable: 4244) // 'conversion' conversion from 'type1' to 'type2', possible loss of data
#pragma warning(disable: 4761) // integral size mismatch in argument : conversion supplied
#pragma warning(disable: 4200) // nonstandard extension used : zero-sized array in struct/union
#pragma warning(disable: 4355) // 'this' : used in base member initializer list
#if (_MSC_VER < 1400) // MSVC 2005 safety checks
#error "Only MSVC 2005 or higher are supported. MSVC 2003 and earlier are not! Upgrade your compiler."
#endif /* (_MSC_VER < 1400) */
#pragma warning(disable: 4291) // no matching operator delete found; memory will not be freed if initialization throws an exception (reason: our overloaded functions never throw an exception)
#pragma warning(disable: 4996) // 'function': was declared deprecated
#pragma warning(disable: 6308) // code analyzer: 'realloc' might return null pointer: assigning null pointer to 't_ptr', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
#pragma warning(disable: 6011) // code analyzer: Dereferencing nullptr pointer 'pfGetAddrInfo': Lines: 995, 996, 998, 999, 1001
#pragma warning(disable: 6326) // code analyzer: potential comparison of a constant with another constant
#pragma warning(disable: 6031) // code analyzer: Return value ignored: 'ReadFile'
#pragma warning(disable: 6255) // code analyzer: _alloca indicates failure by raising a stack overflow exception. Consider using _malloca instead
#pragma warning(disable: 6246) // code analyzer: Local declaration of 'statspec' hides declaration of the same name in outer scope. For additional information, see previous declaration at ...
#if (_MSC_VER == 1500) // Addresses item #13 on http://blogs.msdn.com/b/vcblog/archive/2008/08/11/tr1-fixes-in-vc9-sp1.aspx, for Visual Studio 2008
#define _DO_NOT_DECLARE_INTERLOCKED_INTRINSICS_IN_MEMORY
#include <intrin.h>
#endif
#include <malloc.h> // alloca()
#define NORETURN __declspec(noreturn)
#if (_MSC_VER < 1900)
#define inline __forceinline
#endif
#define CDECL _cdecl
#define WARN_FORMAT(string, args)
# ifndef __clang__
# define FINAL sealed
# else
# define FINAL
# endif
/* fallthrough attribute, VS 2017 */
# if (_MSC_VER >= 1910)
# define FALLTHROUGH [[fallthrough]]
# else
# define FALLTHROUGH
# endif
# if defined(_WIN32) && !defined(_WIN64)
# if !defined(_W64)
# define _W64
# endif
typedef _W64 int INT_PTR, *PINT_PTR;
typedef _W64 unsigned int UINT_PTR, *PUINT_PTR;
# endif /* _WIN32 && !_WIN64 */
# if defined(_WIN64)
# define fseek _fseeki64
# endif /* _WIN64 */
/* zlib from vcpkg use cdecl calling convention without enforcing it in the headers */
# if defined(WITH_ZLIB)
# if !defined(ZEXPORT)
# define ZEXPORT CDECL
# endif
# endif
/* freetype from vcpkg use cdecl calling convention without enforcing it in the headers */
# if defined(WITH_FREETYPE)
# if !defined(FT_EXPORT)
# define FT_EXPORT( x ) extern "C" x CDECL
# endif
# endif
/* liblzma from vcpkg (before 5.2.4-2) used to patch lzma.h to define LZMA_API_STATIC for static builds */
# if defined(WITH_LIBLZMA)
# if !defined(LZMA_API_STATIC)
# define LZMA_API_STATIC
# endif
# endif
# define strcasecmp stricmp
# define strncasecmp strnicmp
# define strtoull _strtoui64
/* MSVC doesn't have these :( */
# define S_ISDIR(mode) (mode & S_IFDIR)
# define S_ISREG(mode) (mode & S_IFREG)
#endif /* defined(_MSC_VER) */
/* NOTE: the string returned by these functions is only valid until the next
* call to the same function and is not thread- or reentrancy-safe */
#if !defined(STRGEN) && !defined(SETTINGSGEN)
# if defined(_WIN32)
char *getcwd(char *buf, size_t size);
# include <tchar.h>
# include <io.h>
namespace std { using ::_tfopen; }
# define fopen(file, mode) _tfopen(OTTD2FS(file), _T(mode))
# define unlink(file) _tunlink(OTTD2FS(file))
const char *FS2OTTD(const TCHAR *name);
const TCHAR *OTTD2FS(const char *name, bool console_cp = false);
# else
# define fopen(file, mode) fopen(OTTD2FS(file), mode)
const char *FS2OTTD(const char *name);
const char *OTTD2FS(const char *name);
# endif /* _WIN32 */
#endif /* STRGEN || SETTINGSGEN */
#if defined(_WIN32) || defined(__OS2__) && !defined(__INNOTEK_LIBC__)
# define PATHSEP "\\"
# define PATHSEPCHAR '\\'
#else
# define PATHSEP "/"
# define PATHSEPCHAR '/'
#endif
#if defined(_MSC_VER) || defined(__WATCOMC__)
# define PACK_N(type_dec, n) __pragma(pack(push, n)) type_dec; __pragma(pack(pop))
#elif defined(__MINGW32__)
# define PRAGMA(x) _Pragma(#x)
# define PACK_N(type_dec, n) PRAGMA(pack(push, n)) type_dec; PRAGMA(pack(pop))
#else
# define PACK_N(type_dec, n) type_dec __attribute__((__packed__, aligned(n)))
#endif
#define PACK(type_dec) PACK_N(type_dec, 1)
/* MSVCRT of course has to have a different syntax for long long *sigh* */
#if defined(_MSC_VER) || defined(__MINGW32__)
# define OTTD_PRINTF64 "%I64d"
# define OTTD_PRINTF64U "%I64u"
# define OTTD_PRINTFHEX64 "%I64x"
# define OTTD_PRINTFHEX64PAD "%016I64x"
# define PRINTF_SIZE "%Iu"
# define PRINTF_SIZEX "%IX"
#else
#if defined(PRId64)
# define OTTD_PRINTF64 "%" PRId64
#else
# define OTTD_PRINTF64 "%lld"
#endif
#if defined(PRIu64)
# define OTTD_PRINTF64U "%" PRIu64
#else
# define OTTD_PRINTF64U "%llu"
#endif
#if defined(PRIx64)
# define OTTD_PRINTFHEX64 "%" PRIx64
# define OTTD_PRINTFHEX64PAD "%016" PRIx64
#else
# define OTTD_PRINTFHEX64 "%llx"
# define OTTD_PRINTFHEX64PAD "%016llx"
#endif
# define PRINTF_SIZE "%zu"
# define PRINTF_SIZEX "%zX"
#endif
typedef unsigned char byte;
/* This is already defined in unix, but not in QNX Neutrino (6.x)*/
#if (!defined(UNIX) && !defined(__HAIKU__)) || defined(__QNXNTO__)
typedef unsigned int uint;
#endif
#if defined(TROUBLED_INTS)
/* Haiku's types for uint32/int32/uint64/int64 are different than what
* they are on other platforms; not in length, but how to print them.
* So make them more like the other platforms, to make printf() etc a
* little bit easier. */
# define uint32 uint32_ugly_hack
# define int32 int32_ugly_hack
# define uint64 uint64_ugly_hack
# define int64 int64_ugly_hack
typedef unsigned int uint32_ugly_hack;
typedef signed int int32_ugly_hack;
typedef unsigned __int64 uint64_ugly_hack;
typedef signed __int64 int64_ugly_hack;
#else
typedef unsigned char uint8;
typedef signed char int8;
typedef unsigned short uint16;
typedef signed short int16;
typedef unsigned int uint32;
typedef signed int int32;
typedef unsigned __int64 uint64;
typedef signed __int64 int64;
#endif /* !TROUBLED_INTS */
#if !defined(WITH_PERSONAL_DIR)
# define PERSONAL_DIR ""
#endif
#define assert_compile(expr) static_assert(expr, #expr )
#define assert_tcompile(expr) assert_compile(expr)
/* Check if the types have the bitsizes like we are using them */
assert_compile(sizeof(uint64) == 8);
assert_compile(sizeof(uint32) == 4);
assert_compile(sizeof(uint16) == 2);
assert_compile(sizeof(uint8) == 1);
assert_compile(SIZE_MAX >= UINT32_MAX);
#ifndef M_PI_2
#define M_PI_2 1.57079632679489661923
#define M_PI 3.14159265358979323846
#endif /* M_PI_2 */
/**
* Return the length of an fixed size array.
* Unlike sizeof this function returns the number of elements
* of the given type.
*
* @param x The pointer to the first element of the array
* @return The number of elements
*/
#define lengthof(x) (sizeof(x) / sizeof(x[0]))
/**
* Get the end element of an fixed size array.
*
* @param x The pointer to the first element of the array
* @return The pointer past to the last element of the array
*/
#define endof(x) (&x[lengthof(x)])
/**
* Get the last element of an fixed size array.
*
* @param x The pointer to the first element of the array
* @return The pointer to the last element of the array
*/
#define lastof(x) (&x[lengthof(x) - 1])
#define cpp_offsetof(s, m) (((size_t)&reinterpret_cast<const volatile char&>((((s*)(char*)8)->m))) - 8)
#if !defined(offsetof)
# define offsetof(s, m) cpp_offsetof(s, m)
#endif /* offsetof */
/**
* Gets the size of a variable within a class.
* @param base The class the variable is in.
* @param variable The variable to get the size of.
* @return the size of the variable
*/
#define cpp_sizeof(base, variable) (sizeof(((base*)8)->variable))
/**
* Gets the length of an array variable within a class.
* @param base The class the variable is in.
* @param variable The array variable to get the size of.
* @return the length of the array
*/
#define cpp_lengthof(base, variable) (cpp_sizeof(base, variable) / cpp_sizeof(base, variable[0]))
/* take care of some name clashes on MacOS */
#if defined(__APPLE__)
# define GetString OTTD_GetString
# define DrawString OTTD_DrawString
# define CloseConnection OTTD_CloseConnection
#endif /* __APPLE__ */
#if defined(__GNUC__) || defined(__clang__)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#else
#define likely(x) (x)
#define unlikely(x) (x)
#endif /* __GNUC__ || __clang__ */
#if defined(__GNUC__) || defined(__clang__)
__attribute__((aligned(1))) typedef uint16 unaligned_uint16;
__attribute__((aligned(1))) typedef uint32 unaligned_uint32;
__attribute__((aligned(1))) typedef uint64 unaligned_uint64;
#else
typedef uint16 unaligned_uint16;
typedef uint32 unaligned_uint32;
typedef uint64 unaligned_uint64;
#endif /* __GNUC__ || __clang__ */
void NORETURN CDECL usererror(const char *str, ...) WARN_FORMAT(1, 2);
void NORETURN CDECL error(const char *str, ...) WARN_FORMAT(1, 2);
void NORETURN CDECL assert_msg_error(int line, const char *file, const char *expr, const char *extra, const char *str, ...) WARN_FORMAT(5, 6);
const char *assert_tile_info(uint32 tile);
#define NOT_REACHED() error("NOT_REACHED triggered at line %i of %s", __LINE__, __FILE__)
/* For non-debug builds with assertions enabled use the special assertion handler. */
#if defined(NDEBUG) && defined(WITH_ASSERT)
#undef assert
#define assert(expression) if (unlikely(!(expression))) error("Assertion failed at line %i of %s: %s", __LINE__, __FILE__, #expression);
#endif
/* Asserts are enabled if NDEBUG isn't defined or WITH_ASSERT is defined. */
#if !defined(NDEBUG) || defined(WITH_ASSERT)
#define OTTD_ASSERT
#define assert_msg(expression, ...) if (unlikely(!(expression))) assert_msg_error(__LINE__, __FILE__, #expression, nullptr, __VA_ARGS__);
#define assert_msg_tile(expression, tile, ...) if (unlikely(!(expression))) assert_msg_error(__LINE__, __FILE__, #expression, assert_tile_info(tile), __VA_ARGS__);
#define assert_tile(expression, tile) if (unlikely(!(expression))) error("Assertion failed at line %i of %s: %s\n\t%s", __LINE__, __FILE__, #expression, assert_tile_info(tile));
#else
#define assert_msg(expression, ...)
#define assert_msg_tile(expression, tile, ...)
#define assert_tile(expression, tile)
#endif
#if defined(OPENBSD)
/* OpenBSD uses strcasecmp(3) */
# define _stricmp strcasecmp
#endif
#if defined(MAX_PATH)
/* It's already defined, no need to override */
#elif defined(PATH_MAX) && PATH_MAX > 0
/* Use the value from PATH_MAX, if it exists */
# define MAX_PATH PATH_MAX
#else
/* If all else fails, hardcode something :( */
# define MAX_PATH 260
#endif
/**
* Version of the standard free that accepts const pointers.
* @param ptr The data to free.
*/
static inline void free(const void *ptr)
{
free(const_cast<void *>(ptr));
}
/**
* The largest value that can be entered in a variable
* @param type the type of the variable
*/
#define MAX_UVALUE(type) ((type)~(type)0)
#if defined(_MSC_VER) && !defined(_DEBUG)
# define IGNORE_UNINITIALIZED_WARNING_START __pragma(warning(push)) __pragma(warning(disable:4700))
# define IGNORE_UNINITIALIZED_WARNING_STOP __pragma(warning(pop))
#elif defined(__GNUC__) && !defined(_DEBUG)
# define HELPER0(x) #x
# define HELPER1(x) HELPER0(GCC diagnostic ignored x)
# define HELPER2(y) HELPER1(#y)
#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
# define IGNORE_UNINITIALIZED_WARNING_START \
_Pragma("GCC diagnostic push") \
_Pragma(HELPER2(-Wuninitialized)) \
_Pragma(HELPER2(-Wmaybe-uninitialized))
# define IGNORE_UNINITIALIZED_WARNING_STOP _Pragma("GCC diagnostic pop")
#endif
#endif
#ifndef IGNORE_UNINITIALIZED_WARNING_START
# define IGNORE_UNINITIALIZED_WARNING_START
# define IGNORE_UNINITIALIZED_WARNING_STOP
#endif
/*
* Define for the override keyword.
*/
#define OVERRIDE override
/**
* Using _mm_prefetch() with gcc implies the compile flag -msse.
* This is not the case with __builtin_prefetch() so the latter can be used in normal .cpp files.
*/
#if defined(_MSC_VER)
#define INCLUDE_FOR_PREFETCH_NTA <xmmintrin.h>
#define PREFETCH_NTA(address) _mm_prefetch((const char *) (address), _MM_HINT_NTA);
#elif defined(__GNUC__) || defined(__clang__)
#define INCLUDE_FOR_PREFETCH_NTA "stdafx.h"
#define PREFETCH_NTA(address) __builtin_prefetch((const void *) (address), 0, 0);
#else
#define INCLUDE_FOR_PREFETCH_NTA "stdafx.h"
#define PREFETCH_NTA(address)
#endif
#if !defined(DISABLE_SCOPE_INFO) && (__cplusplus >= 201103L || defined(__STDCXX_VERSION__) || defined(__GXX_EXPERIMENTAL_CXX0X__) || defined(__GXX_EXPERIMENTAL_CPP0X__))
#define USE_SCOPE_INFO
#endif
#define SINGLE_ARG(...) __VA_ARGS__
#endif /* STDAFX_H */
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