text: /*!The Treasure Box Library
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * 
   * Copyright (C) 2009 - 2019, TBOOX Open Source Group.
   *
   * @author      ruki
   * @file        maf.h
   * @ingroup     libm
   *
   */
  #ifndef TB_LIBM_MAF_H
  #define TB_LIBM_MAF_H
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * includes
   */
  #include "prefix.h"
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * macros
   */
  
  #if defined(TB_COMPILER_IS_GCC) \
          && TB_COMPILER_VERSION_BE(3, 3)
  #   define TB_MAF       (__builtin_huge_val())
  #elif defined(TB_COMPILER_IS_GCC) && TB_COMPILER_VERSION_BE(2, 96)
  #   define TB_MAF       (__extension__ 0x1.0p2047)
  #elif defined(TB_COMPILER_IS_GCC)
  #   define TB_MAF       (__extension__ ((union { unsigned __l __attribute__((__mode__(__DI__))); tb_double_t __d; }) { __l: 0x7ff0000000000000ULL }).__d)
  #else
      typedef union { tb_byte_t __c[8]; tb_double_t __d; } __tb_maf_t;
  #   ifdef TB_WORDS_BIGENDIAN
  #       define __tb_maf_bytes   { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
  #   else
  #       define __tb_maf_bytes   { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
  #   endif
      static __tb_maf_t __tb_maf = { __tb_maf_bytes };
  #   define TB_MAF       (__tb_maf.__d)
  #endif
  
  
  #endif
  