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- /* Copyright (C) 1998 DJ Delorie, see COPYING.DJ for details */
- #ifndef __dj_include_ieeefp_h_
- #define __dj_include_ieeefp_h_
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- #include <sys/cdefs.h>
-
- /* #include <machine/ieeefp.h> */
- #include <machine/endian.h>
- #if BYTE_ORDER == LITTLE_ENDIAN
- # define __IEEE_LITTLE_ENDIAN
- #endif
-
- /* FLOATING ROUNDING */
-
- typedef int fp_rnd;
- #define FP_RN 0 /* Round to nearest */
- #define FP_RM 1 /* Round down */
- #define FP_RP 2 /* Round up */
- #define FP_RZ 3 /* Round to zero (truncate) */
-
- fp_rnd _EXFUN(fpgetround,(void));
- fp_rnd _EXFUN(fpsetround, (fp_rnd));
-
- /* EXCEPTIONS */
-
- typedef int fp_except;
- #define FP_X_INV 0x10 /* Invalid operation */
- #define FP_X_DX 0x80 /* Divide by zero */
- #define FP_X_OFL 0x04 /* Overflow exception */
- #define FP_X_UFL 0x02 /* Underflow exception */
- #define FP_X_IMP 0x01 /* Imprecise exception */
-
- fp_except _EXFUN(fpgetmask,(void));
- fp_except _EXFUN(fpsetmask,(fp_except));
- fp_except _EXFUN(fpgetsticky,(void));
- fp_except _EXFUN(fpsetsticky, (fp_except));
-
- /* INTEGER ROUNDING */
-
- typedef int fp_rdi;
- #define FP_RDI_TOZ 0 /* Round to Zero */
- #define FP_RDI_RD 1 /* Follow float mode */
-
- fp_rdi _EXFUN(fpgetroundtoi,(void));
- fp_rdi _EXFUN(fpsetroundtoi,(fp_rdi));
-
- int _EXFUN(isnan, (double));
- int _EXFUN(isinf, (double));
- int _EXFUN(finite, (double));
-
- int _EXFUN(isnanf, (float));
- int _EXFUN(isinff, (float));
- int _EXFUN(finitef, (float));
-
- #define __IEEE_DBL_EXPBIAS 1023
- #define __IEEE_FLT_EXPBIAS 127
-
- #define __IEEE_DBL_EXPLEN 11
- #define __IEEE_FLT_EXPLEN 8
-
-
- #define __IEEE_DBL_FRACLEN (64 - (__IEEE_DBL_EXPLEN + 1))
- #define __IEEE_FLT_FRACLEN (32 - (__IEEE_FLT_EXPLEN + 1))
-
- #define __IEEE_DBL_MAXPOWTWO ((double)(1L << 32 - 2) * (1L << (32-11) - 32 + 1))
- #define __IEEE_FLT_MAXPOWTWO ((float)(1L << (32-8) - 1))
-
- #define __IEEE_DBL_NAN_EXP 0x7ff
- #define __IEEE_FLT_NAN_EXP 0xff
-
-
- #define isnanf(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
- ((*(long *)&(x) & 0x007fffffL)!=0000000000L))
-
- #define isinff(x) (((*(long *)&(x) & 0x7f800000L)==0x7f800000L) && \
- ((*(long *)&(x) & 0x007fffffL)==0000000000L))
-
- #define finitef(x) (((*(long *)&(x) & 0x7f800000L)!=0x7f800000L))
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* __dj_include_ieeefp_h_ */
-