mirror of
https://github.com/python/cpython.git
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b08a53a99d
- incorporate and adapt David Gay's dtoa and strtod into the Python core - on platforms where we can use Gay's code (almost all!), repr(float) is based on the shortest sequence of decimal digits that rounds correctly. - add sys.float_repr_style attribute to indicate whether we're using Gay's code or not - add autoconf magic to detect and enable SSE2 instructions on x86/gcc - slight change to repr and str: repr switches to exponential notation at 1e16 instead of 1e17, str switches at 1e11 instead of 1e12
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
#ifndef PYMACCONFIG_H
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#define PYMACCONFIG_H
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/*
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* This file moves some of the autoconf magic to compile-time
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* when building on MacOSX. This is needed for building 4-way
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* universal binaries and for 64-bit universal binaries because
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* the values redefined below aren't configure-time constant but
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* only compile-time constant in these scenarios.
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*/
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#if defined(__APPLE__)
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# undef SIZEOF_LONG
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# undef SIZEOF_PTHREAD_T
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# undef SIZEOF_SIZE_T
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# undef SIZEOF_TIME_T
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# undef SIZEOF_VOID_P
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# undef SIZEOF__BOOL
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# undef WORDS_BIGENDIAN
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# undef DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754
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# undef DOUBLE_IS_BIG_ENDIAN_IEEE754
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# undef DOUBLE_IS_LITTLE_ENDIAN_IEEE754
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# undef VA_LIST_IS_ARRAY
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# if defined(__LP64__) && defined(__x86_64__)
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# define VA_LIST_IS_ARRAY 1
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# endif
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# undef HAVE_LARGEFILE_SUPPORT
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# ifndef __LP64__
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# define HAVE_LARGEFILE_SUPPORT 1
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# endif
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# undef SIZEOF_LONG
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# ifdef __LP64__
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# define SIZEOF__BOOL 1
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# define SIZEOF__BOOL 1
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# define SIZEOF_LONG 8
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# define SIZEOF_PTHREAD_T 8
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# define SIZEOF_SIZE_T 8
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# define SIZEOF_TIME_T 8
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# define SIZEOF_VOID_P 8
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# else
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# ifdef __ppc__
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# define SIZEOF__BOOL 4
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# else
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# define SIZEOF__BOOL 1
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# endif
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# define SIZEOF_LONG 4
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# define SIZEOF_PTHREAD_T 4
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# define SIZEOF_SIZE_T 4
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# define SIZEOF_TIME_T 4
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# define SIZEOF_VOID_P 4
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# endif
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# if defined(__LP64__)
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/* MacOSX 10.4 (the first release to suppport 64-bit code
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* at all) only supports 64-bit in the UNIX layer.
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* Therefore surpress the toolbox-glue in 64-bit mode.
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*/
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/* In 64-bit mode setpgrp always has no argments, in 32-bit
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* mode that depends on the compilation environment
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*/
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# undef SETPGRP_HAVE_ARG
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# endif
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#ifdef __BIG_ENDIAN__
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#define WORDS_BIGENDIAN 1
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#define DOUBLE_IS_BIG_ENDIAN_IEEE754
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#else
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#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754
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#endif /* __BIG_ENDIAN */
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#endif /* defined(_APPLE__) */
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#endif /* PYMACCONFIG_H */
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