#ifndef OMNI_PLATFORM_H
#  define OMNI_PLATFORM_H

/*
 *
 * COMPILER INFORMATION
 *
 */

#  undef OMNI_CC_MSVC
#  undef OMNI_CC_GNU

#  if defined(_MSC_VER)
#    define OMNI_CC_MSVC
#  endif

#  if defined(__GNUC__) || defined(__clang__)
#    define OMNI_CC_GNU
#  endif

#  if !defined(OMNI_CC_GNU) && !defined(OMNI_CC_MSVC)
#    error "compiler not supported"
#  endif

/*
 *
 * TARGET ARCHITECTURE INFORMATION
 *
 */

#  undef OMNI_ARCH_X86
#  undef OMNI_ARCH_ARM
#  undef OMNI_ARCH_64BIT
#  undef OMNI_ARCH_32BIT

#  if defined(__i386__) || defined(_M_IX86)
#    define OMNI_ARCH_X86
#    define OMNI_ARCH_32BIT
#  endif

#  if defined(__x86_64__) || defined(_M_X64)
#    define OMNI_ARCH_X86
#    define OMNI_ARCH_64BIT
#  endif

#  if defined(__arm__) || defined(_M_ARM)
#    define OMNI_ARCH_ARM
#    define OMNI_ARCH_32BIT
#  endif

#  if defined(__aarch64__) || defined(_M_ARM64) || defined(__arm64__)
#    define OMNI_ARCH_ARM
#    define OMNI_ARCH_64BIT
#  endif

#  if !defined(OMNI_ARCH_X86) && !defined(OMNI_ARCH_ARM)
#    error "target architecture is not supported"
#  endif

/*
 *
 * TARGET OS INFORMATION
 *
 */

#  undef OMNI_OS_WIN
#  undef OMNI_OS_LINUX
#  undef OMNI_OS_FREEBSD
#  undef OMNI_OS_OSX

#  if defined(_WIN32) || defined(_WIN64)
#    define OMNI_OS_WIN
#  endif

#  if defined(__linux__)
#    define OMNI_OS_LINUX
#    define OMNI_OS_UNIX
#  endif

#  if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#    define OMNI_OS_FREEBSD
#    define OMNI_OS_UNIX
#  endif

#  if defined(__APPLE__) && defined(__MACH__)
#    define OMNI_OS_OSX
#    define OMNI_OS_UNIX
#  endif

#  if !defined(OMNI_OS_UNIX) && !defined(OMNI_OS_WIN)
#    error "target os not supported"
#  endif

/*
 *
 *
 * CHECK COMPILER STANDARD
 *
 */

#  undef OMNI_CXX_VER_MIN
#  undef OMNI_CXX_VER
#  undef OMNI_CC_VER

#  define OMNI_CC_VER __STDC_VERSION__

#  if defined(OMNI_CC_MSVC)
#    if defined(_MSVC_LANG)
#      define OMNI_CXX_VER _MSVC_LANG
#    else
#      define OMNI_CXX_VER 0
#    endif
#  endif

#  if defined(OMNI_CC_GNU)
#    if defined(__cplusplus)
#      define OMNI_CXX_VER __cplusplus
#    else
#      define OMNI_CXX_VER 0
#    endif
#  endif

#  define OMNI_CXX_VER_MIN 201103L
#  if OMNI_CXX_VER_MIN > OMNI_CXX_VER
#    error "atleast C++11 is required"
#  endif