mirror of
https://gitlab.gnome.org/GNOME/libxml2.git
synced 2024-12-25 23:21:26 +03:00
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*************************************************************************
|
|
*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2001 Bjorn Reese <breese@users.sourceforge.net>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
|
|
* CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
|
|
*
|
|
************************************************************************/
|
|
|
|
#ifndef TRIO_NAN_H
|
|
#define TRIO_NAN_H
|
|
|
|
#include "triodef.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
enum {
|
|
TRIO_FP_INFINITE,
|
|
TRIO_FP_NAN,
|
|
TRIO_FP_NORMAL,
|
|
TRIO_FP_SUBNORMAL,
|
|
TRIO_FP_ZERO
|
|
};
|
|
|
|
/*
|
|
* Return NaN (Not-a-Number).
|
|
*/
|
|
TRIO_PUBLIC double trio_nan TRIO_PROTO((void));
|
|
|
|
/*
|
|
* Return positive infinity.
|
|
*/
|
|
TRIO_PUBLIC double trio_pinf TRIO_PROTO((void));
|
|
|
|
/*
|
|
* Return negative infinity.
|
|
*/
|
|
TRIO_PUBLIC double trio_ninf TRIO_PROTO((void));
|
|
|
|
/*
|
|
* Return negative zero.
|
|
*/
|
|
TRIO_PUBLIC double trio_nzero TRIO_PROTO((TRIO_NOARGS));
|
|
|
|
/*
|
|
* If number is a NaN return non-zero, otherwise return zero.
|
|
*/
|
|
TRIO_PUBLIC int trio_isnan TRIO_PROTO((double number));
|
|
|
|
/*
|
|
* If number is positive infinity return 1, if number is negative
|
|
* infinity return -1, otherwise return 0.
|
|
*/
|
|
TRIO_PUBLIC int trio_isinf TRIO_PROTO((double number));
|
|
|
|
/*
|
|
* If number is finite return non-zero, otherwise return zero.
|
|
*/
|
|
#if 0
|
|
/* Temporary fix - these 2 routines not used in libxml */
|
|
TRIO_PUBLIC int trio_isfinite TRIO_PROTO((double number));
|
|
|
|
TRIO_PUBLIC int trio_fpclassify TRIO_PROTO((double number));
|
|
#endif
|
|
|
|
TRIO_PUBLIC int trio_signbit TRIO_PROTO((double number));
|
|
|
|
TRIO_PUBLIC int trio_fpclassify_and_signbit TRIO_PROTO((double number, int *is_negative));
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* TRIO_NAN_H */
|