text: /*===---- float.h - Characteristics of floating point types ----------------===
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   *
   *===-----------------------------------------------------------------------===
   */
  
  #ifndef __FLOAT_H
  #define __FLOAT_H
  
  /* If we're on MinGW, fall back to the system's float.h, which might have
   * additional definitions provided for Windows.
   * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx
   *
   * Also fall back on Darwin to allow additional definitions and
   * implementation-defined values.
   */
  #if (defined(__APPLE__) || (defined(__MINGW32__) || defined(_MSC_VER))) && \
      __STDC_HOSTED__ && __has_include_next(<float.h>)
  
  /* Prior to Apple's 10.7 SDK, float.h SDK header used to apply an extra level
   * of #include_next<float.h> to keep Metrowerks compilers happy. Avoid this
   * extra indirection.
   */
  #ifdef __APPLE__
  #define _FLOAT_H_
  #endif
  
  #  include_next <float.h>
  
  /* Undefine anything that we'll be redefining below. */
  #  undef FLT_EVAL_METHOD
  #  undef FLT_ROUNDS
  #  undef FLT_RADIX
  #  undef FLT_MANT_DIG
  #  undef DBL_MANT_DIG
  #  undef LDBL_MANT_DIG
  #  if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__)
  #    undef DECIMAL_DIG
  #  endif
  #  undef FLT_DIG
  #  undef DBL_DIG
  #  undef LDBL_DIG
  #  undef FLT_MIN_EXP
  #  undef DBL_MIN_EXP
  #  undef LDBL_MIN_EXP
  #  undef FLT_MIN_10_EXP
  #  undef DBL_MIN_10_EXP
  #  undef LDBL_MIN_10_EXP
  #  undef FLT_MAX_EXP
  #  undef DBL_MAX_EXP
  #  undef LDBL_MAX_EXP
  #  undef FLT_MAX_10_EXP
  #  undef DBL_MAX_10_EXP
  #  undef LDBL_MAX_10_EXP
  #  undef FLT_MAX
  #  undef DBL_MAX
  #  undef LDBL_MAX
  #  undef FLT_EPSILON
  #  undef DBL_EPSILON
  #  undef LDBL_EPSILON
  #  undef FLT_MIN
  #  undef DBL_MIN
  #  undef LDBL_MIN
  #  if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__)
  #    undef FLT_TRUE_MIN
  #    undef DBL_TRUE_MIN
  #    undef LDBL_TRUE_MIN
  #    undef FLT_DECIMAL_DIG
  #    undef DBL_DECIMAL_DIG
  #    undef LDBL_DECIMAL_DIG
  #  endif
  #endif
  
  /* Characteristics of floating point types, C99 5.2.4.2.2 */
  
  #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
  #define FLT_ROUNDS (__builtin_flt_rounds())
  #define FLT_RADIX __FLT_RADIX__
  
  #define FLT_MANT_DIG __FLT_MANT_DIG__
  #define DBL_MANT_DIG __DBL_MANT_DIG__
  #define LDBL_MANT_DIG __LDBL_MANT_DIG__
  
  #if __STDC_VERSION__ >= 199901L || !defined(__STRICT_ANSI__)
  #  define DECIMAL_DIG __DECIMAL_DIG__
  #endif
  
  #define FLT_DIG __FLT_DIG__
  #define DBL_DIG __DBL_DIG__
  #define LDBL_DIG __LDBL_DIG__
  
  #define FLT_MIN_EXP __FLT_MIN_EXP__
  #define DBL_MIN_EXP __DBL_MIN_EXP__
  #define LDBL_MIN_EXP __LDBL_MIN_EXP__
  
  #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__
  #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__
  #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__
  
  #define FLT_MAX_EXP __FLT_MAX_EXP__
  #define DBL_MAX_EXP __DBL_MAX_EXP__
  #define LDBL_MAX_EXP __LDBL_MAX_EXP__
  
  #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__
  #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
  #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__
  
  #define FLT_MAX __FLT_MAX__
  #define DBL_MAX __DBL_MAX__
  #define LDBL_MAX __LDBL_MAX__
  
  #define FLT_EPSILON __FLT_EPSILON__
  #define DBL_EPSILON __DBL_EPSILON__
  #define LDBL_EPSILON __LDBL_EPSILON__
  
  #define FLT_MIN __FLT_MIN__
  #define DBL_MIN __DBL_MIN__
  #define LDBL_MIN __LDBL_MIN__
  
  #if __STDC_VERSION__ >= 201112L || !defined(__STRICT_ANSI__)
  #  define FLT_TRUE_MIN __FLT_DENORM_MIN__
  #  define DBL_TRUE_MIN __DBL_DENORM_MIN__
  #  define LDBL_TRUE_MIN __LDBL_DENORM_MIN__
  #  define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__
  #  define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__
  #  define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__
  #endif
  
  #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__
  #  define FLT16_MANT_DIG    __FLT16_MANT_DIG__
  #  define FLT16_DECIMAL_DIG __FLT16_DECIMAL_DIG__
  #  define FLT16_DIG         __FLT16_DIG__
  #  define FLT16_MIN_EXP     __FLT16_MIN_EXP__
  #  define FLT16_MIN_10_EXP  __FLT16_MIN_10_EXP__
  #  define FLT16_MAX_EXP     __FLT16_MAX_EXP__
  #  define FLT16_MAX_10_EXP  __FLT16_MAX_10_EXP__
  #  define FLT16_MAX         __FLT16_MAX__
  #  define FLT16_EPSILON     __FLT16_EPSILON__
  #  define FLT16_MIN         __FLT16_MIN__
  #  define FLT16_TRUE_MIN    __FLT16_TRUE_MIN__
  #endif /* __STDC_WANT_IEC_60559_TYPES_EXT__ */
  
  #endif /* __FLOAT_H */
  