raze/source/build/include/compat.h
Christoph Oelckers ae63bcd80b - use BFSSearch in updatesectorneighbor.
The old bfirst_* helpers are gone now.
2021-11-29 00:55:45 +01:00

96 lines
1.9 KiB
C

// Compatibility declarations for things which might not be present in
// certain build environments. It also levels the playing field caused
// by different platforms.
#ifndef compat_h_
#define compat_h_
#pragma once
#include "xs_Float.h"
#include "m_alloc.h"
#include "intvec.h"
#include "m_swap.h"
////////// Language and compiler feature polyfills //////////
# define fallthrough__ [[fallthrough]]
////////// Architecture detection //////////
#ifdef WORDS_BIGENDIAN
# define B_BIG_ENDIAN 1
#else
# define B_BIG_ENDIAN 0
#endif
#include <inttypes.h>
#include <stdint.h>
#include <limits.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !(defined _WIN32 && defined __clang__)
#include <float.h>
#endif
#include <math.h>
#include <ctype.h>
#include <errno.h>
#include <time.h>
#include <assert.h>
# include <limits>
# include <algorithm>
# include <functional>
# include <type_traits>
////////// Platform headers //////////
#if !defined __APPLE__ && (!defined EDUKE32_BSD || !__STDC__) && !defined __OpenBSD__ && !defined __DragonFly__
# include <malloc.h>
#endif
#include "engineerrors.h"
typedef intptr_t bssize_t;
#define BMAX_PATH 256
////////// Metaprogramming structs //////////
using native_t = intptr_t;
typedef struct {
float x, y;
} vec2f_t;
typedef struct {
union {
struct {
union { float x, d; };
union { float y, u; };
union { float z, v; };
};
vec2f_t vec2;
};
} vec3f_t;
static_assert(sizeof(vec3f_t) == sizeof(float) * 3);
////////// Language tricks that depend on size_t //////////
#include "basics.h"
////////// Bitfield manipulation //////////
inline void bitmap_set(uint8_t *const ptr, int const n) { ptr[n>>3] |= 1 << (n&7); }
inline char bitmap_test(uint8_t const *const ptr, int const n) { return ptr[n>>3] & (1 << (n&7)); }
#endif // compat_h_