jn_yn.c File Reference

#include <math.h>
#include <float.h>
#include "ieee754/ieee754.h"

Include dependency graph for jn_yn.c:

Go to the source code of this file.

Typedefs
typedef int	fpclass_t

Functions
fpclass_t	_fpclass (double __d)
int *	_errno (void)
double	_jn (int n, double num)
double	_yn (int order, double num)

Typedef Documentation

fpclass_t

typedef int fpclass_t

Definition at line 5 of file jn_yn.c.

Function Documentation

_errno()

int * _errno

(

void

)

Definition at line 215 of file errno.c.

{
    return &msvcrt_get_thread_data()->thread_errno;
}

Referenced by __wcserror_s(), _access_s(), _aligned_offset_malloc(), _aligned_offset_realloc(), _atoi_l(), _atol_l(), _beginthread(), _chdrive(), _chsize_s(), _close(), _cwait(), _dup2(), _fcvt_s(), _findnext(), _findnexti64(), _flsbuf(), _fsopen(), _ftime_s(), _fullpath(), _gcvt(), _gcvt_s(), _get_errno(), _get_osfhandle(), _get_osplatform(), _get_pgmptr(), _get_tzname(), _get_wpgmptr(), _getcwd(), _getdcwd(), _gmtime64_s(), _heapadd(), _i64toa_s(), _i64tow_s(), _localtime32_s(), _localtime64_s(), _locking(), _lseeki64(), _ltoa_s(), _ltow_s(), _makepath_s(), _mbccpy_s_l(), _mbsnbcat_s_l(), _mbstowcs_l(), _mbstrlen_l(), _mktemp_s(), _pclose(), _pipe(), _putenv_s(), _read(), _searchenv_s(), _set_errno(), _setmbcp(), _setmbcp_l(), _setmode(), _sopen_dispatch(), _splitpath_s(), _strdate_s(), _Strftime(), _strlwr_s_l(), _strnset_s(), _strtime_s(), _strtoi64_l(), _strtol_l(), _strtoui64_l(), _strtoul_l(), _strupr_s_l(), _strxfrm_l(), _tolower_l(), _toupper_l(), _tsearchenv_s(), _tstat64(), _ui64toa_s(), _ui64tow_s(), _ultoa_s(), _ultow_s(), _vscprintf_p_l(), _waccess_s(), _wasctime(), _wcslwr_s(), _wcslwr_s_l(), _wcsnset_s(), _wcsset_s(), _wcstod_l(), _wcstoi64_l(), _wcstol_l(), _wcstoui64_l(), _wcstoul_l(), _wcsupr_s_l(), _wcsxfrm_l(), _wctomb_s_l(), _wfindnext(), _wfindnext32(), _wfindnext64(), _wfindnext64i32(), _wfindnexti64(), _wfopen_s(), _wfreopen_s(), _wfullpath(), _wgetcwd(), _wgetdcwd(), _wmakepath_s(), _wmktemp_s(), _wputenv_s(), _write(), _wsearchenv_s(), _wsopen_dispatch(), _wsopen_s(), _wsplitpath_s(), _wstat64(), _wstrdate_s(), _wstrtime_s(), _wsystem(), _wtoi_l(), _wtol_l(), _yn(), alloc_pioinfo_block(), asctime(), asctime_buf(), calloc(), fopen_s(), freopen_s(), get_ioinfo_alloc(), heap_alloc_dbg(), heap_alloc_dbg_internal(), malloc(), math_error(), mbsrtowcs_s(), mktime_helper(), msvcrt_get_file(), msvcrt_init_fp(), msvcrt_set_errno(), msvcrt_spawn(), perror(), pf_printf(), rand_s(), read_i(), read_utf8(), run_open_osfhandle(), START_TEST(), strerror_s(), strftime_date(), strftime_helper(), strftime_impl(), strftime_int(), strftime_nstr(), strftime_str(), strftime_time(), strtod_helper(), Test_popen(), tmpnam_helper(), vfprintf_helper(), vfwprintf_helper(), vsprintf_p_l_opt(), vswprintf_p_l_opt(), wcsrtombs_l(), wcsrtombs_s_l(), wctomb(), win_iconv_open(), and wtmpnam_helper().

_fpclass()

fpclass_t _fpclass

(

double

__d

)

Definition at line 595 of file math.c.

{
    union { double f; UINT64 i; } u = { num };
    int e = u.i >> 52 & 0x7ff;
    int s = u.i >> 63;
 
    switch (e)
    {
    case 0:
        if (u.i << 1) return s ? _FPCLASS_ND : _FPCLASS_PD;
        return s ? _FPCLASS_NZ : _FPCLASS_PZ;
    case 0x7ff:
        if (u.i << 12) return ((u.i >> 51) & 1) ? _FPCLASS_QNAN : _FPCLASS_SNAN;
        return s ? _FPCLASS_NINF : _FPCLASS_PINF;
    default:
        return s ? _FPCLASS_NN : _FPCLASS_PN;
    }
}

Referenced by _yn().

_jn()

double _jn	(	int	n,
		double	num
	)

Definition at line 12 of file jn_yn.c.

{
  /* FIXME: errno handling */
  return __ieee754_jn(n, num);
}

Referenced by jn().

_yn()

double _yn	(	int	order,
		double	num
	)

Definition at line 21 of file jn_yn.c.

{
  double retval;
  if (!_finite(num)) *_errno() = EDOM;
  retval  = __ieee754_yn(order,num);
  if (_fpclass(retval) == _FPCLASS_NINF)
  {
    *_errno() = EDOM;
    retval = sqrt(-1);
  }
  return retval;
}

Referenced by yn().