#include <crtdefs.h>

Include dependency graph for float.h:

Macros
#define	_MCW_EM 0x0008001F /* Error masks */

#define	_MCW_IC 0x00040000 /* Infinity */

#define	_MCW_RC 0x00000300 /* Rounding */

#define	_MCW_PC 0x00030000 /* Precision */

#define	_MCW_DN 0x03000000 /* Denormal */

#define	_EM_INVALID 0x00000010

#define	_EM_DENORMAL 0x00080000

#define	_EM_ZERODIVIDE 0x00000008

#define	_EM_OVERFLOW 0x00000004

#define	_EM_UNDERFLOW 0x00000002

#define	_EM_INEXACT 0x00000001

#define	_IC_AFFINE 0x00040000

#define	_IC_PROJECTIVE 0x00000000

#define	_RC_CHOP 0x00000300

#define	_RC_UP 0x00000200

#define	_RC_DOWN 0x00000100

#define	_RC_NEAR 0x00000000

#define	_PC_24 0x00020000

#define	_PC_53 0x00010000

#define	_PC_64 0x00000000

#define	_DN_SAVE 0x00000000

#define	_DN_FLUSH 0x01000000

#define	_DN_FLUSH_OPERANDS_SAVE_RESULTS 0x02000000

#define	_DN_SAVE_OPERANDS_FLUSH_RESULTS 0x03000000

#define	__MINGW_FPCLASS_DEFINED 1

#define	_FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */

#define	_FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */

#define	_FPCLASS_NINF 0x0004 /* Negative Infinity */

#define	_FPCLASS_NN 0x0008 /* Negative Normal */

#define	_FPCLASS_ND 0x0010 /* Negative Denormal */

#define	_FPCLASS_NZ 0x0020 /* Negative Zero */

#define	_FPCLASS_PZ 0x0040 /* Positive Zero */

#define	_FPCLASS_PD 0x0080 /* Positive Denormal */

#define	_FPCLASS_PN 0x0100 /* Positive Normal */

#define	_FPCLASS_PINF 0x0200 /* Positive Infinity */

#define	_SW_INEXACT 0x00000001 /* inexact (precision) */

#define	_SW_UNDERFLOW 0x00000002 /* underflow */

#define	_SW_OVERFLOW 0x00000004 /* overflow */

#define	_SW_ZERODIVIDE 0x00000008 /* zero divide */

#define	_SW_INVALID 0x00000010 /* invalid */

#define	_SW_DENORMAL 0x00080000 /* denormal status bit */

#define	_SW_UNEMULATED 0x0040 /* unemulated instruction */

#define	_SW_SQRTNEG 0x0080 /* square root of a neg number */

#define	_SW_STACKOVERFLOW 0x0200 /* FP stack overflow */

#define	_SW_STACKUNDERFLOW 0x0400 /* FP stack underflow */

#define	_FPE_INVALID 0x81

#define	_FPE_DENORMAL 0x82

#define	_FPE_ZERODIVIDE 0x83

#define	_FPE_OVERFLOW 0x84

#define	_FPE_UNDERFLOW 0x85

#define	_FPE_INEXACT 0x86

#define	_FPE_UNEMULATED 0x87

#define	_FPE_SQRTNEG 0x88

#define	_FPE_STACKOVERFLOW 0x8a

#define	_FPE_STACKUNDERFLOW 0x8b

#define	_FPE_EXPLICITGEN 0x8c /* raise( SIGFPE ); */

#define	_clear87 _clearfp

#define	_status87 _statusfp

#define	_fpecode (*(__fpecode()))

Functions
__MINGW_NOTHROW _CRTIMP unsigned int __cdecl	_controlfp (_In_ unsigned int unNew, _In_ unsigned int unMask)

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl	_control87 (_In_ unsigned int unNew, _In_ unsigned int unMask)

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl	_clearfp (void)

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl	_statusfp (void)

__MINGW_NOTHROW void __cdecl	_fpreset (void)

__MINGW_NOTHROW void __cdecl	fpreset (void)

__MINGW_NOTHROW _CRTIMP int *__cdecl	__fpecode (void)

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl	_chgsign (_In_ double)

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl	_copysign (_In_ double, _In_ double)

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl	_logb (_In_ double)

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl	_nextafter (_In_ double, _In_ double)

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl	_scalb (_In_ double, _In_ long)

_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl	_finite (_In_ double)

_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl	_fpclass (_In_ double)

_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl	_isnan (_In_ double)

Macro Definition Documentation

◆ __MINGW_FPCLASS_DEFINED

#define __MINGW_FPCLASS_DEFINED 1

Definition at line 71 of file float.h.

◆ _clear87

#define _clear87 _clearfp

Definition at line 139 of file float.h.

◆ _DN_FLUSH

#define _DN_FLUSH 0x01000000

Definition at line 63 of file float.h.

◆ _DN_FLUSH_OPERANDS_SAVE_RESULTS

#define _DN_FLUSH_OPERANDS_SAVE_RESULTS 0x02000000

Definition at line 64 of file float.h.

◆ _DN_SAVE

#define _DN_SAVE 0x00000000

Definition at line 62 of file float.h.

◆ _DN_SAVE_OPERANDS_FLUSH_RESULTS

#define _DN_SAVE_OPERANDS_FLUSH_RESULTS 0x03000000

Definition at line 65 of file float.h.

◆ _EM_DENORMAL

#define _EM_DENORMAL 0x00080000

Definition at line 48 of file float.h.

◆ _EM_INEXACT

#define _EM_INEXACT 0x00000001

Definition at line 52 of file float.h.

◆ _EM_INVALID

#define _EM_INVALID 0x00000010

Definition at line 47 of file float.h.

◆ _EM_OVERFLOW

#define _EM_OVERFLOW 0x00000004

Definition at line 50 of file float.h.

◆ _EM_UNDERFLOW

#define _EM_UNDERFLOW 0x00000002

Definition at line 51 of file float.h.

◆ _EM_ZERODIVIDE

#define _EM_ZERODIVIDE 0x00000008

Definition at line 49 of file float.h.

◆ _FPCLASS_ND

#define _FPCLASS_ND 0x0010 /* Negative Denormal */

Definition at line 76 of file float.h.

◆ _FPCLASS_NINF

#define _FPCLASS_NINF 0x0004 /* Negative Infinity */

Definition at line 74 of file float.h.

◆ _FPCLASS_NN

#define _FPCLASS_NN 0x0008 /* Negative Normal */

Definition at line 75 of file float.h.

◆ _FPCLASS_NZ

#define _FPCLASS_NZ 0x0020 /* Negative Zero */

Definition at line 77 of file float.h.

◆ _FPCLASS_PD

#define _FPCLASS_PD 0x0080 /* Positive Denormal */

Definition at line 79 of file float.h.

◆ _FPCLASS_PINF

#define _FPCLASS_PINF 0x0200 /* Positive Infinity */

Definition at line 81 of file float.h.

◆ _FPCLASS_PN

#define _FPCLASS_PN 0x0100 /* Positive Normal */

Definition at line 80 of file float.h.

◆ _FPCLASS_PZ

#define _FPCLASS_PZ 0x0040 /* Positive Zero */

Definition at line 78 of file float.h.

◆ _FPCLASS_QNAN

#define _FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */

Definition at line 73 of file float.h.

◆ _FPCLASS_SNAN

#define _FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */

Definition at line 72 of file float.h.

◆ _FPE_DENORMAL

#define _FPE_DENORMAL 0x82

Definition at line 100 of file float.h.

◆ _FPE_EXPLICITGEN

#define _FPE_EXPLICITGEN 0x8c /* raise( SIGFPE ); */

Definition at line 109 of file float.h.

◆ _FPE_INEXACT

#define _FPE_INEXACT 0x86

Definition at line 104 of file float.h.

◆ _FPE_INVALID

#define _FPE_INVALID 0x81

Definition at line 99 of file float.h.

◆ _FPE_OVERFLOW

#define _FPE_OVERFLOW 0x84

Definition at line 102 of file float.h.

◆ _FPE_SQRTNEG

#define _FPE_SQRTNEG 0x88

Definition at line 106 of file float.h.

◆ _FPE_STACKOVERFLOW

#define _FPE_STACKOVERFLOW 0x8a

Definition at line 107 of file float.h.

◆ _FPE_STACKUNDERFLOW

#define _FPE_STACKUNDERFLOW 0x8b

Definition at line 108 of file float.h.

◆ _FPE_UNDERFLOW

#define _FPE_UNDERFLOW 0x85

Definition at line 103 of file float.h.

◆ _FPE_UNEMULATED

#define _FPE_UNEMULATED 0x87

Definition at line 105 of file float.h.

◆ _FPE_ZERODIVIDE

#define _FPE_ZERODIVIDE 0x83

Definition at line 101 of file float.h.

◆ _fpecode

#define _fpecode (*(__fpecode()))

Definition at line 157 of file float.h.

◆ _IC_AFFINE

#define _IC_AFFINE 0x00040000

Definition at line 53 of file float.h.

◆ _IC_PROJECTIVE

#define _IC_PROJECTIVE 0x00000000

Definition at line 54 of file float.h.

◆ _MCW_DN

#define _MCW_DN 0x03000000 /* Denormal */

Definition at line 44 of file float.h.

◆ _MCW_EM

#define _MCW_EM 0x0008001F /* Error masks */

Definition at line 40 of file float.h.

◆ _MCW_IC

#define _MCW_IC 0x00040000 /* Infinity */

Definition at line 41 of file float.h.

◆ _MCW_PC

#define _MCW_PC 0x00030000 /* Precision */

Definition at line 43 of file float.h.

◆ _MCW_RC

#define _MCW_RC 0x00000300 /* Rounding */

Definition at line 42 of file float.h.

◆ _PC_24

#define _PC_24 0x00020000

Definition at line 59 of file float.h.

◆ _PC_53

#define _PC_53 0x00010000

Definition at line 60 of file float.h.

◆ _PC_64

#define _PC_64 0x00000000

Definition at line 61 of file float.h.

◆ _RC_CHOP

#define _RC_CHOP 0x00000300

Definition at line 55 of file float.h.

◆ _RC_DOWN

#define _RC_DOWN 0x00000100

Definition at line 57 of file float.h.

◆ _RC_NEAR

#define _RC_NEAR 0x00000000

Definition at line 58 of file float.h.

◆ _RC_UP

#define _RC_UP 0x00000200

Definition at line 56 of file float.h.

◆ _status87

#define _status87 _statusfp

Definition at line 140 of file float.h.

◆ _SW_DENORMAL

#define _SW_DENORMAL 0x00080000 /* denormal status bit */

Definition at line 90 of file float.h.

◆ _SW_INEXACT

#define _SW_INEXACT 0x00000001 /* inexact (precision) */

Definition at line 85 of file float.h.

◆ _SW_INVALID

#define _SW_INVALID 0x00000010 /* invalid */

Definition at line 89 of file float.h.

◆ _SW_OVERFLOW

#define _SW_OVERFLOW 0x00000004 /* overflow */

Definition at line 87 of file float.h.

◆ _SW_SQRTNEG

#define _SW_SQRTNEG 0x0080 /* square root of a neg number */

Definition at line 94 of file float.h.

◆ _SW_STACKOVERFLOW

#define _SW_STACKOVERFLOW 0x0200 /* FP stack overflow */

Definition at line 95 of file float.h.

◆ _SW_STACKUNDERFLOW

#define _SW_STACKUNDERFLOW 0x0400 /* FP stack underflow */

Definition at line 96 of file float.h.

◆ _SW_UNDERFLOW

#define _SW_UNDERFLOW 0x00000002 /* underflow */

Definition at line 86 of file float.h.

◆ _SW_UNEMULATED

#define _SW_UNEMULATED 0x0040 /* unemulated instruction */

Definition at line 93 of file float.h.

◆ _SW_ZERODIVIDE

#define _SW_ZERODIVIDE 0x00000008 /* zero divide */

Definition at line 88 of file float.h.

Function Documentation

◆ __fpecode()

__MINGW_NOTHROW _CRTIMP int *__cdecl __fpecode ( void )

Definition at line 16 of file fpecode.c.

{
    return &msvcrt_get_thread_data()->fpecode;
}

◆ _chgsign()

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl _chgsign ( _In_ double )

Referenced by _chgsignf().

◆ _clearfp()

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl _clearfp ( void )

Definition at line 11 of file _clearfp.c.

{
    unsigned int retval;
 
    /* Get current status value */
    retval = _statusfp();
 
    /* Clear the exception mask */
    _mm_setcsr(_mm_getcsr() & ~_MM_EXCEPT_MASK);
   
    /* Return the previous state */
    return retval;
}

Referenced by main(), and Test_exceptions().

◆ _control87()

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl _control87	(	_In_ unsigned int	unNew,
		_In_ unsigned int	unMask
	)

◆ _controlfp()

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl _controlfp	(	_In_ unsigned int	unNew,
		_In_ unsigned int	unMask
	)

Referenced by __declspec(), _controlfp_s(), main(), START_TEST(), Test_controlfp(), and Test_exceptions().

◆ _copysign()

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl _copysign	(	_In_ double	,
		_In_ double
	)

Referenced by _copysignf().

◆ _finite()

_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl _finite ( _In_ double )

Referenced by _j0(), _j1(), _y0(), _y1(), _yn(), format_float(), MSVCRT_I10_OUTPUT(), rpn_exp(), rpn_exp10(), rpn_exp2(), rpn_exp3(), rpn_fact(), rpn_pow_f(), rpn_sqr_f(), run_operator(), and test_finite().

◆ _fpclass()

_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl _fpclass ( _In_ double )

Referenced by _y0(), _y1(), and test_fpclass().

◆ _fpreset()

__MINGW_NOTHROW void __cdecl _fpreset ( void )

Definition at line 10 of file _fpreset.c.

{
    /* Mask everything */
    _mm_setcsr(_MM_MASK_MASK);
}

Referenced by START_TEST(), Test_controlfp(), and Test_exceptions().

◆ _isnan()

_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl _isnan ( _In_ double )

Referenced by _nextafter(), format_float(), ldexp(), MSVCRT_I10_OUTPUT(), rpn_acos(), rpn_acosh(), rpn_asin(), rpn_asinh(), rpn_atan(), rpn_atanh(), rpn_cosh(), rpn_pow_f(), rpn_sinh(), rpn_sqr_f(), rpn_tanh(), test_isnan(), and TRIO_ARGS1().

◆ _logb()

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl _logb ( _In_ double )

◆ _nextafter()

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl _nextafter	(	_In_ double	,
		_In_ double
	)

◆ _scalb()

_Check_return_ __MINGW_NOTHROW _CRTIMP double __cdecl _scalb	(	_In_ double	,
		_In_ long
	)

Referenced by test_scalb().

◆ _statusfp()

__MINGW_NOTHROW _CRTIMP unsigned int __cdecl _statusfp ( void )

Definition at line 11 of file _statusfp.c.

{
    unsigned int mxcsr, status = 0;
 
    /* Get MXCSR */
    mxcsr = _mm_getcsr();
 
    /* Convert to abstract status flags */
    if (mxcsr & _MM_EXCEPT_INVALID)
        status |= _SW_INVALID;
    if (mxcsr & _MM_EXCEPT_DENORM)
        status |= _SW_DENORMAL;
    if (mxcsr & _MM_EXCEPT_DIV_ZERO)
        status |= _SW_ZERODIVIDE;
    if (mxcsr & _MM_EXCEPT_OVERFLOW)
        status |= _SW_OVERFLOW;
    if (mxcsr & _MM_EXCEPT_UNDERFLOW)
        status |= _SW_UNDERFLOW;
    if (mxcsr & _MM_EXCEPT_INEXACT)
        status |= _SW_INEXACT;
 
    return status;
}

Referenced by _clearfp(), START_TEST(), and Test_exceptions().

◆ fpreset()

__MINGW_NOTHROW void __cdecl fpreset ( void )

Macros

Functions