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#pragma once

// ya style breaks indentation in ifdef's and code becomes unreadable 
// clang-format off 
 
// What OS ?
// our definition has the form _{osname}_

#if defined(_WIN64)
    #define _win64_ 
    #define _win32_ 
#elif defined(__WIN32__) || defined(_WIN32) // _WIN32 is also defined by the 64-bit compiler for backward compatibility
    #define _win32_ 
#else
    #define _unix_ 
 
    #if defined(__sun__) || defined(sun) || defined(sparc) || defined(__sparc) 
        #define _sun_ 
    #endif 
 
    #if defined(__hpux__) 
        #define _hpux_ 
    #endif 
 
    #if defined(__linux__) 
        // Stands for "Linux" in the means of Linux kernel (i. e. Android is included) 
        #define _linux_ 
    #endif 
 
    #if defined(__FreeBSD__) 
        #define _freebsd_ 
    #endif 
 
    #if defined(__CYGWIN__) 
        #define _cygwin_ 
    #endif 
 
    #if defined(__APPLE__) 
        #define _darwin_ 
    #endif 
 
    #if defined(__ANDROID__) 
        #define _android_ 
    #endif 
#endif

#if defined(__IOS__)
    #define _ios_ 
#endif

#if defined(_linux_)
    #if defined(_musl_) 
        // nothing to do 
    #elif defined(_android_) 
        // Please do not mix with android-based systems. 
        // This definition describes Standard Library (libc) type. 
        #define _bionic_ 
    #else 
        #define _glibc_ 
    #endif 
#endif

#if defined(_darwin_)
    #define unix 
    #define __unix__ 
#endif

#if defined(_win32_) || defined(_win64_)
    #define _win_ 
#endif

#if defined(__arm__) || defined(__ARM__) || defined(__ARM_NEON) || defined(__aarch64__) || defined(_M_ARM)
    #if defined(__arm64) || defined(__arm64__) || defined(__aarch64__) 
        #define _arm64_ 
    #else 
        #define _arm32_ 
    #endif 
#endif

#if defined(_arm64_) || defined(_arm32_)
    #define _arm_ 
#endif

/* __ia64__ and __x86_64__      - defined by GNU C.
 * _M_IA64, _M_X64, _M_AMD64    - defined by Visual Studio.
 *
 * Microsoft can define _M_IX86, _M_AMD64 (before Visual Studio 8)
 * or _M_X64 (starting in Visual Studio 8).
 */
#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64)
    #define _x86_64_ 
#endif

#if defined(__i386__) || defined(_M_IX86)
    #define _i386_ 
#endif

#if defined(__ia64__) || defined(_M_IA64)
    #define _ia64_ 
#endif

#if defined(__powerpc__)
    #define _ppc_ 
#endif

#if defined(__powerpc64__)
    #define _ppc64_ 
#endif

#if !defined(sparc) && !defined(__sparc) && !defined(__hpux__) && !defined(__alpha__) && !defined(_ia64_) && !defined(_x86_64_) && !defined(_arm_) && !defined(_i386_) && !defined(_ppc_) && !defined(_ppc64_)
    #error "platform not defined, please, define one" 
#endif

#if defined(_x86_64_) || defined(_i386_)
    #define _x86_ 
#endif

#if defined(__MIC__)
    #define _mic_ 
    #define _k1om_ 
#endif

// stdio or MessageBox
#if defined(__CONSOLE__) || defined(_CONSOLE)
    #define _console_ 
#endif
#if (defined(_win_) && !defined(_console_))
    #define _windows_ 
#elif !defined(_console_)
    #define _console_ 
#endif

#if defined(__SSE__) || defined(SSE_ENABLED)
    #define _sse_ 
#endif

#if defined(__SSE2__) || defined(SSE2_ENABLED)
    #define _sse2_ 
#endif

#if defined(__SSE3__) || defined(SSE3_ENABLED)
    #define _sse3_ 
#endif

#if defined(__SSSE3__) || defined(SSSE3_ENABLED)
    #define _ssse3_ 
#endif

#if defined(__SSE4_1__) || defined(SSE41_ENABLED)
    #define _sse4_1_ 
#endif

#if defined(__SSE4_2__) || defined(SSE42_ENABLED)
    #define _sse4_2_ 
#endif

#if defined(__POPCNT__) || defined(POPCNT_ENABLED)
    #define _popcnt_ 
#endif

#if defined(__PCLMUL__) || defined(PCLMUL_ENABLED)
    #define _pclmul_ 
#endif

#if defined(__AES__) || defined(AES_ENABLED)
    #define _aes_ 
#endif

#if defined(__AVX__) || defined(AVX_ENABLED)
    #define _avx_ 
#endif

#if defined(__AVX2__) || defined(AVX2_ENABLED)
    #define _avx2_ 
#endif

#if defined(__FMA__) || defined(FMA_ENABLED)
    #define _fma_ 
#endif

#if defined(__DLL__) || defined(_DLL)
    #define _dll_ 
#endif

// 16, 32 or 64
#if defined(__sparc_v9__) || defined(_x86_64_) || defined(_ia64_) || defined(_arm64_) || defined(_ppc64_)
    #define _64_ 
#else
    #define _32_ 
#endif

/* All modern 64-bit Unix systems use scheme LP64 (long, pointers are 64-bit).
 * Microsoft uses a different scheme: LLP64 (long long, pointers are 64-bit).
 *
 * Scheme          LP64   LLP64
 * char              8      8
 * short            16     16
 * int              32     32
 * long             64     32
 * long long        64     64
 * pointer          64     64
 */

#if defined(_32_)
    #define SIZEOF_PTR 4 
#elif defined(_64_)
    #define SIZEOF_PTR 8 
#endif

#define PLATFORM_DATA_ALIGN SIZEOF_PTR

#if !defined(SIZEOF_PTR)
    #error todo 
#endif

#define SIZEOF_CHAR 1
#define SIZEOF_UNSIGNED_CHAR 1
#define SIZEOF_SHORT 2
#define SIZEOF_UNSIGNED_SHORT 2
#define SIZEOF_INT 4
#define SIZEOF_UNSIGNED_INT 4

#if defined(_32_)
    #define SIZEOF_LONG 4 
    #define SIZEOF_UNSIGNED_LONG 4 
#elif defined(_64_)
    #if defined(_win_) 
        #define SIZEOF_LONG 4 
        #define SIZEOF_UNSIGNED_LONG 4 
    #else 
        #define SIZEOF_LONG 8 
        #define SIZEOF_UNSIGNED_LONG 8 
    #endif // _win_ 
#endif // _32_

#if !defined(SIZEOF_LONG)
    #error todo 
#endif

#define SIZEOF_LONG_LONG 8
#define SIZEOF_UNSIGNED_LONG_LONG 8

#undef SIZEOF_SIZE_T // in case we include <Python.h> which defines it, too
#define SIZEOF_SIZE_T SIZEOF_PTR

// clang-format on