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- #ifndef __IEEE_BIG_ENDIAN
- #ifndef __IEEE_LITTLE_ENDIAN
- /* This file can define macros to choose variations of the IEEE float
- format:
- _FLT_LARGEST_EXPONENT_IS_NORMAL
- Defined if the float format uses the largest exponent for finite
- numbers rather than NaN and infinity representations. Such a
- format cannot represent NaNs or infinities at all, but it's FLT_MAX
- is twice the IEEE value.
- _FLT_NO_DENORMALS
- Defined if the float format does not support IEEE denormals. Every
- float with a zero exponent is taken to be a zero representation.
-
- ??? At the moment, there are no equivalent macros above for doubles and
- the macros are not fully supported by --enable-newlib-hw-fp.
- __IEEE_BIG_ENDIAN
- Defined if the float format is big endian. This is mutually exclusive
- with __IEEE_LITTLE_ENDIAN.
- __IEEE_LITTLE_ENDIAN
-
- Defined if the float format is little endian. This is mutually exclusive
- with __IEEE_BIG_ENDIAN.
- Note that one of __IEEE_BIG_ENDIAN or __IEEE_LITTLE_ENDIAN must be specified for a
- platform or error will occur.
- __IEEE_BYTES_LITTLE_ENDIAN
- This flag is used in conjunction with __IEEE_BIG_ENDIAN to describe a situation
- whereby multiple words of an IEEE floating point are in big endian order, but the
- words themselves are little endian with respect to the bytes.
- _DOUBLE_IS_32BITS
- This is used on platforms that support double by using the 32-bit IEEE
- float type.
- _FLOAT_ARG
- This represents what type a float arg is passed as. It is used when the type is
- not promoted to double.
-
- */
- #ifdef __HAVE_SHORT_DOUBLE__
- #if (__SIZEOF_DOUBLE__ == __SIZEOF_FLOAT__)
- #define _DOUBLE_IS_32BITS
- #endif
- #endif
- #ifdef __tricore__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #if (defined(__arm__) || defined(__thumb__)) && !defined(__MAVERICK__)
- /* ARM traditionally used big-endian words; and within those words the
- byte ordering was big or little endian depending upon the target.
- Modern floating-point formats are naturally ordered; in this case
- __VFP_FP__ will be defined, even if soft-float. */
- #ifdef __VFP_FP__
- # ifdef __ARMEL__
- # define __IEEE_LITTLE_ENDIAN
- # else
- # define __IEEE_BIG_ENDIAN
- # endif
- #else
- # ifdef __ARMEL__
- # define __IEEE_LITTLE_ENDIAN
- # else
- # define __IEEE_BIG_ENDIAN
- # endif
- # ifdef __ARMWEL__
- # define __IEEE_BYTES_LITTLE_ENDIAN
- # endif
- #endif
- #endif
- #ifdef __hppa__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __SPU__
- #define __IEEE_BIG_ENDIAN
- #define isfinite(y) \
- (__extension__ ({__typeof__(y) __y = (y); \
- (sizeof (__y) == sizeof (float)) ? (1) : \
- fpclassify(__y) != FP_INFINITE && fpclassify(__y) != FP_NAN;}))
- #define isinf(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isinfd(__x))
- #define isnan(__x) ((sizeof (__x) == sizeof (float)) ? (0) : __isnand(__x))
- /*
- * Macros for use in ieeefp.h. We can't just define the real ones here
- * (like those above) as we have name space issues when this is *not*
- * included via generic the ieeefp.h.
- */
- #define __ieeefp_isnanf(x) 0
- #define __ieeefp_isinff(x) 0
- #define __ieeefp_finitef(x) 1
- #endif
- #ifdef __sparc__
- #ifdef __LITTLE_ENDIAN_DATA__
- #define __IEEE_LITTLE_ENDIAN
- #else
- #define __IEEE_BIG_ENDIAN
- #endif
- #endif
- #if defined(__m68k__) || defined(__mc68000__)
- #define __IEEE_BIG_ENDIAN
- #endif
- #if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__)
- #define __IEEE_BIG_ENDIAN
- #endif
- #if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__) || defined (__H8500__) || defined (__H8300SX__)
- #define __IEEE_BIG_ENDIAN
- #define _FLOAT_ARG float
- #define _DOUBLE_IS_32BITS
- #endif
- #if defined (__xc16x__) || defined (__xc16xL__) || defined (__xc16xS__)
- #define __IEEE_LITTLE_ENDIAN
- #define _FLOAT_ARG float
- #define _DOUBLE_IS_32BITS
- #endif
- #ifdef __sh__
- #ifdef __LITTLE_ENDIAN__
- #define __IEEE_LITTLE_ENDIAN
- #else
- #define __IEEE_BIG_ENDIAN
- #endif
- #if defined(__SH2E__) || defined(__SH3E__) || defined(__SH4_SINGLE_ONLY__) || defined(__SH2A_SINGLE_ONLY__)
- #define _DOUBLE_IS_32BITS
- #endif
- #endif
- #ifdef _AM29K
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef _WIN32
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __i386__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __i960__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __lm32__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __M32R__
- #define __IEEE_BIG_ENDIAN
- #endif
- #if defined(_C4x) || defined(_C3x)
- #define __IEEE_BIG_ENDIAN
- #define _DOUBLE_IS_32BITS
- #endif
- #ifdef __TIC80__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __MIPSEL__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __MIPSEB__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __MMIX__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __D30V__
- #define __IEEE_BIG_ENDIAN
- #endif
- /* necv70 was __IEEE_LITTLE_ENDIAN. */
- #ifdef __W65__
- #define __IEEE_LITTLE_ENDIAN
- #define _DOUBLE_IS_32BITS
- #endif
- #if defined(__Z8001__) || defined(__Z8002__)
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __m88k__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __mn10300__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __mn10200__
- #define __IEEE_LITTLE_ENDIAN
- #define _DOUBLE_IS_32BITS
- #endif
- #ifdef __v800
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __v850
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __D10V__
- #define __IEEE_BIG_ENDIAN
- #if __DOUBLE__ == 32
- #define _DOUBLE_IS_32BITS
- #endif
- #endif
- #ifdef __PPC__
- #if (defined(_BIG_ENDIAN) && _BIG_ENDIAN) || (defined(_AIX) && _AIX)
- #define __IEEE_BIG_ENDIAN
- #else
- #if (defined(_LITTLE_ENDIAN) && _LITTLE_ENDIAN) || (defined(__sun__) && __sun__) || (defined(_WIN32) && _WIN32)
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #endif
- #endif
- #ifdef __xstormy16__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __arc__
- #ifdef __big_endian__
- #define __IEEE_BIG_ENDIAN
- #else
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #endif
- #ifdef __CRX__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __fr30__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __mcore__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __mt__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __frv__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __moxie__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __ia64__
- #ifdef __BIG_ENDIAN__
- #define __IEEE_BIG_ENDIAN
- #else
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #endif
- #ifdef __AVR__
- #define __IEEE_LITTLE_ENDIAN
- #define _DOUBLE_IS_32BITS
- #endif
- #if defined(__or32__) || defined(__or1k__) || defined(__or16__)
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __IP2K__
- #define __IEEE_BIG_ENDIAN
- #define __SMALL_BITFIELDS
- #define _DOUBLE_IS_32BITS
- #endif
- #ifdef __iq2000__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __MAVERICK__
- #ifdef __ARMEL__
- # define __IEEE_LITTLE_ENDIAN
- #else /* must be __ARMEB__ */
- # define __IEEE_BIG_ENDIAN
- #endif /* __ARMEL__ */
- #endif /* __MAVERICK__ */
- #ifdef __m32c__
- #define __IEEE_LITTLE_ENDIAN
- #define __SMALL_BITFIELDS
- #endif
- #ifdef __CRIS__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __BFIN__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __x86_64__
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifdef __mep__
- #ifdef __LITTLE_ENDIAN__
- #define __IEEE_LITTLE_ENDIAN
- #else
- #define __IEEE_BIG_ENDIAN
- #endif
- #endif
- #ifdef __MICROBLAZE__
- #define __IEEE_BIG_ENDIAN
- #endif
- #ifdef __RX__
- #ifdef __RX_BIG_ENDIAN__
- #define __IEEE_BIG_ENDIAN
- #else
- #define __IEEE_LITTLE_ENDIAN
- #endif
- #ifndef __RX_64BIT_DOUBLES__
- #define _DOUBLE_IS_32BITS
- #endif
- #ifdef __RX_16BIT_INTS__
- #define __SMALL_BITFIELDS
- #endif
- #endif
- #ifndef __IEEE_BIG_ENDIAN
- #ifndef __IEEE_LITTLE_ENDIAN
- #error Endianess not declared!!
- #endif /* not __IEEE_LITTLE_ENDIAN */
- #endif /* not __IEEE_BIG_ENDIAN */
- #endif /* not __IEEE_LITTLE_ENDIAN */
- #endif /* not __IEEE_BIG_ENDIAN */
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