_ansi.h

edb9315 wince4.2最新的bsp代码

/* Provide support for both ANSI and non-ANSI environments.  */

/* Some ANSI environments are "broken" in the sense that __STDC__ cannot be
   relied upon to have it's intended meaning.  Therefore we must use our own
   concoction: _HAVE_STDC.  Always use _HAVE_STDC instead of __STDC__ in newlib
   sources!

   To get a strict ANSI C environment, define macro __STRICT_ANSI__.  This will
   "comment out" the non-ANSI parts of the ANSI header files (non-ANSI header
   files aren't affected).  */

#ifndef	_ANSIDECL_H_
#define	_ANSIDECL_H_

/* First try to figure out whether we really are in an ANSI C environment.  */
/* FIXME: This probably needs some work.  Perhaps sys/config.h can be
   prevailed upon to give us a clue.  */

#ifdef __STDC__
#define _HAVE_STDC
#endif

#ifdef _HAVE_STDC
#define	_PTR		void *
#define	_AND		,
#define	_NOARGS		void
#define	_CONST		const
#define	_VOLATILE	volatile
#define	_SIGNED		signed
#define	_DOTS		, ...
#define _VOID void
#ifdef __CYGWIN__
#define	_EXFUN(name, proto)		__cdecl name proto
#define	_EXPARM(name, proto)		(* __cdecl name) proto
#else
#define	_EXFUN(name, proto)		name proto
#define _EXPARM(name, proto)		(* name) proto
#endif
#define	_DEFUN(name, arglist, args)	name(args)

#define	_DEFUN_VOID(name)		name(_NOARGS)
#define _CAST_VOID (void)
#ifndef _LONG_DOUBLE
#define _LONG_DOUBLE long double
#endif
#ifndef _PARAMS
#define _PARAMS(paramlist)		paramlist
#endif
#else	
#define	_PTR		char *
#define	_AND		;
#define	_NOARGS
#define	_CONST
#define	_VOLATILE
#define	_SIGNED
#define	_DOTS
#define _VOID void
#define	_EXFUN(name, proto)		name()
#define	_DEFUN(name, arglist, args)	name arglist args;

#define	_DEFUN_VOID(name)		name()
#define _CAST_VOID
#define _LONG_DOUBLE double
#ifndef _PARAMS
#define _PARAMS(paramlist)		()
#endif
#endif

/* Support gcc's __attribute__ facility.  */

#ifdef __GNUC__
#define _ATTRIBUTE(attrs) __attribute__ (attrs)
#else
#define _ATTRIBUTE(attrs)
#endif

/*  ISO C++.  */

#ifdef __cplusplus
#if !(defined(_BEGIN_STD_C) && defined(_END_STD_C))
#ifdef _HAVE_STD_CXX
#define _BEGIN_STD_C namespace std { extern "C" {
#define _END_STD_C  } }
#else
#define _BEGIN_STD_C extern "C" {
#define _END_STD_C  }
#endif
#endif
#else
#define _BEGIN_STD_C
#define _END_STD_C
#endif

typedef union 
{
  double value;
  struct 
  {
#ifdef __SMALL_BITFIELDS
    unsigned int fraction3:16;
    unsigned int fraction2:16;
    unsigned int fraction1:16;
    unsigned int fraction0: 4;
#else
    unsigned int fraction1:32;
    unsigned int fraction0:20;
#endif
    unsigned int exponent :11;
    unsigned int sign     : 1;
  } number;
  struct 
  {
#ifdef __SMALL_BITFIELDS
    unsigned int function3:16;
    unsigned int function2:16;
    unsigned int function1:16;
    unsigned int function0:3;
#else
    unsigned int function1:32;
    unsigned int function0:19;
#endif
    unsigned int quiet:1;
    unsigned int exponent: 11;
    unsigned int sign : 1;
  } nan;
  struct 
  {
    unsigned long lsw;
    unsigned long msw;
  } parts;

  long aslong[2];

} __ieee_double_shape_type;




#define MAXFLOAT	3.40282347e+38F

#define M_E		2.7182818284590452354
#define M_LOG2E		1.4426950408889634074
#define M_LOG10E	0.43429448190325182765
#define M_LN2		0.69314718055994530942
#define M_LN10		2.30258509299404568402
#define M_PI		3.14159265358979323846
#define M_TWOPI         (M_PI * 2.0)
#define M_PI_2		1.57079632679489661923
#define M_PI_4		0.78539816339744830962
#define M_3PI_4		2.3561944901923448370E0
#define M_SQRTPI        1.77245385090551602792981
#define M_1_PI		0.31830988618379067154
#define M_2_PI		0.63661977236758134308
#define M_2_SQRTPI	1.12837916709551257390
#define M_SQRT2		1.41421356237309504880
#define M_SQRT1_2	0.70710678118654752440
#define M_LN2LO         1.9082149292705877000E-10
#define M_LN2HI         6.9314718036912381649E-1
#define M_SQRT3   	1.73205080756887719000
#define M_IVLN10        0.43429448190325182765 /* 1 / log(10) */
#define M_LOG2_E        0.693147180559945309417
#define M_INVLN2        1.4426950408889633870E0  /* 1 / log(2) */


extern float     __cdecl ceilf(float);
extern float     __cdecl fabsf(float);
extern float     __cdecl floorf(float);
extern float     __cdecl sqrtf(float);
extern double    __cdecl acos(double);
extern double    __cdecl asin(double);
extern double    __cdecl atan(double);
extern double    __cdecl atan2(double, double);
extern double    __cdecl cos(double);
extern double    __cdecl cosh(double);
extern double    __cdecl exp(double);
extern double    __cdecl fabs(double);
extern double    __cdecl fmod(double, double);
extern float     __cdecl fmodf(float, float);
extern double    __cdecl log(double);
extern double    __cdecl log10(double);
extern double    __cdecl pow(double, double);
extern double    __cdecl sin(double);
extern double    __cdecl sinh(double);
extern double    __cdecl sqrt(double);
extern double    __cdecl tan(double);
extern double    __cdecl tanh(double);
extern double    __cdecl ceil(double);
extern double    __cdecl floor(double);
extern double    __cdecl _y0( double x );
extern double    __cdecl _y1( double x );
extern double    __cdecl _yn( int n, double x );

#ifdef USE_CRUNCH_LIBRARY
extern float __cdecl  acosf(float);  
extern float __cdecl  asinf(float);  
extern float __cdecl  atanf(float);  
extern float __cdecl  atan2f(float,float); 
extern float __cdecl  cosf(float);   
extern float __cdecl  coshf(float);  
extern float __cdecl  expf(float);   
extern float __cdecl  logf(float);   
extern float __cdecl  log10f(float); 
extern float __cdecl  sinf(float);   
extern float __cdecl  sinhf(float);  
extern float __cdecl  tanf(float);   
extern float __cdecl  tanhf(float);  
extern float __cdecl  acoshf(float);
extern float __cdecl  asinhf(float);
extern float __cdecl  atanhf(float);
#endif

#endif /* _ANSIDECL_H_ */