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#endif
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#endif
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/* Natural log of 2 */
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/* Natural log of 2 */
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#define _M_LN2        0.693147180559945309417
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#define _M_LN2        0.693147180559945309417
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#if defined(__GNUC__) && \
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  ( (__GNUC__ >= 4) || \
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    ( (__GNUC__ >= 3) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 3) ) )
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#if __GNUC_PREREQ (3, 3)
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 /* gcc >= 3.3 implicitly defines builtins for HUGE_VALx values.  */
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 /* gcc >= 3.3 implicitly defines builtins for HUGE_VALx values.  */
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#if !defined(__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L
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#if !defined(__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L
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/* ISO C99 types and macros. */
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/* FIXME:  FLT_EVAL_METHOD should somehow be gotten from float.h (which is hard,
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 * considering that the standard says the includes it defines should not
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 * include other includes that it defines) and that value used.  (This can be
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 * solved, but autoconf has a bug which makes the solution more difficult, so
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 * it has been skipped for now.)  */
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#if !defined(FLT_EVAL_METHOD) && defined(__FLT_EVAL_METHOD__)
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  #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
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/* ISO C99 types and macros. */
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  #define __TMP_FLT_EVAL_METHOD
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#endif /* FLT_EVAL_METHOD */
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#ifndef FLT_EVAL_METHOD
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#if defined FLT_EVAL_METHOD
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  #if FLT_EVAL_METHOD == 0
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    typedef float  float_t;
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    typedef double double_t;
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   #elif FLT_EVAL_METHOD == 1
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    typedef double float_t;
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    typedef double double_t;
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   #elif FLT_EVAL_METHOD == 2
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    typedef long double float_t;
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    typedef long double double_t;
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   #else
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    /* Implementation-defined.  Assume float_t and double_t have been
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     * defined previously for this configuration (e.g. config.h). */
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  #endif
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#else
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    /* Assume basic definitions.  */
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    typedef float  float_t;
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#define FLT_EVAL_METHOD 0
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    typedef double double_t;
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#endif
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typedef float float_t;
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#if defined(__TMP_FLT_EVAL_METHOD)
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typedef double double_t;
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  #undef FLT_EVAL_METHOD
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#endif /* FLT_EVAL_METHOD */
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#endif
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extern float gammaf _PARAMS((float));
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extern float gammaf _PARAMS((float));
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extern float lgammaf _PARAMS((float));
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extern float lgammaf _PARAMS((float));
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extern float erff _PARAMS((float));
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extern float erff _PARAMS((float));
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extern float erfcf _PARAMS((float));
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extern float erfcf _PARAMS((float));
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extern float log2f _PARAMS((float));
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extern float log2f _PARAMS((float));
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#if !defined(__cplusplus)
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#define log2f(x) (logf (x) / (float_t) _M_LN2)
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#endif
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extern float hypotf _PARAMS((float, float));
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extern float hypotf _PARAMS((float, float));
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#endif /* ! defined (_REENT_ONLY) */
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#endif /* ! defined (_REENT_ONLY) */
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/* On platforms where long double equals double.  */
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/* On platforms where long double equals double.  */