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Name	Size	Permission
mimalloc	[ DIR ]	drwxr-xr-x
pycore_abstract.h	1.87 KB	-rw-r--r--
pycore_asdl.h	2.96 KB	-rw-r--r--
pycore_ast.h	30.78 KB	-rw-r--r--
pycore_ast_state.h	6.62 KB	-rw-r--r--
pycore_atexit.h	1.4 KB	-rw-r--r--
pycore_backoff.h	3.81 KB	-rw-r--r--
pycore_bitutils.h	5.88 KB	-rw-r--r--
pycore_blocks_output_buffer.h	8.57 KB	-rw-r--r--
pycore_brc.h	2.05 KB	-rw-r--r--
pycore_bytes_methods.h	3.84 KB	-rw-r--r--
pycore_bytesobject.h	4.75 KB	-rw-r--r--
pycore_call.h	5.99 KB	-rw-r--r--
pycore_capsule.h	397 B	-rw-r--r--
pycore_cell.h	1.03 KB	-rw-r--r--
pycore_ceval.h	10.9 KB	-rw-r--r--
pycore_ceval_state.h	3.83 KB	-rw-r--r--
pycore_code.h	19.4 KB	-rw-r--r--
pycore_codecs.h	2.41 KB	-rw-r--r--
pycore_compile.h	3.66 KB	-rw-r--r--
pycore_complexobject.h	588 B	-rw-r--r--
pycore_condvar.h	2.64 KB	-rw-r--r--
pycore_context.h	1.15 KB	-rw-r--r--
pycore_critical_section.h	7.78 KB	-rw-r--r--
pycore_crossinterp.h	11.84 KB	-rw-r--r--
pycore_descrobject.h	543 B	-rw-r--r--
pycore_dict.h	11.98 KB	-rw-r--r--
pycore_dict_state.h	732 B	-rw-r--r--
pycore_dtoa.h	1.69 KB	-rw-r--r--
pycore_emscripten_signal.h	685 B	-rw-r--r--
pycore_emscripten_trampoline.h	3.11 KB	-rw-r--r--
pycore_exceptions.h	900 B	-rw-r--r--
pycore_faulthandler.h	2.19 KB	-rw-r--r--
pycore_fileutils.h	9.25 KB	-rw-r--r--
pycore_fileutils_windows.h	2.65 KB	-rw-r--r--
pycore_floatobject.h	1.46 KB	-rw-r--r--
pycore_flowgraph.h	1.45 KB	-rw-r--r--
pycore_format.h	480 B	-rw-r--r--
pycore_frame.h	10.62 KB	-rw-r--r--
pycore_freelist.h	4.7 KB	-rw-r--r--
pycore_function.h	1.5 KB	-rw-r--r--
pycore_gc.h	12.66 KB	-rw-r--r--
pycore_genobject.h	859 B	-rw-r--r--
pycore_getopt.h	490 B	-rw-r--r--
pycore_gil.h	2.14 KB	-rw-r--r--
pycore_global_objects.h	3.02 KB	-rw-r--r--
pycore_global_objects_fini_gen...	115.04 KB	-rw-r--r--
pycore_global_strings.h	26.08 KB	-rw-r--r--
pycore_hamt.h	3.65 KB	-rw-r--r--
pycore_hashtable.h	4.26 KB	-rw-r--r--
pycore_identifier.h	515 B	-rw-r--r--
pycore_import.h	7.55 KB	-rw-r--r--
pycore_importdl.h	3.96 KB	-rw-r--r--
pycore_initconfig.h	6.23 KB	-rw-r--r--
pycore_instruction_sequence.h	2.11 KB	-rw-r--r--
pycore_instruments.h	2.28 KB	-rw-r--r--
pycore_interp.h	14.71 KB	-rw-r--r--
pycore_intrinsics.h	1.71 KB	-rw-r--r--
pycore_jit.h	527 B	-rw-r--r--
pycore_list.h	1.82 KB	-rw-r--r--
pycore_llist.h	2.36 KB	-rw-r--r--
pycore_lock.h	8.34 KB	-rw-r--r--
pycore_long.h	9.73 KB	-rw-r--r--
pycore_memoryobject.h	427 B	-rw-r--r--
pycore_mimalloc.h	1.6 KB	-rw-r--r--
pycore_modsupport.h	3.27 KB	-rw-r--r--
pycore_moduleobject.h	1.54 KB	-rw-r--r--
pycore_namespace.h	435 B	-rw-r--r--
pycore_object.h	26.64 KB	-rw-r--r--
pycore_object_alloc.h	2.13 KB	-rw-r--r--
pycore_object_stack.h	2.33 KB	-rw-r--r--
pycore_object_state.h	942 B	-rw-r--r--
pycore_obmalloc.h	26.78 KB	-rw-r--r--
pycore_obmalloc_init.h	1.89 KB	-rw-r--r--
pycore_opcode_metadata.h	82.74 KB	-rw-r--r--
pycore_opcode_utils.h	2.07 KB	-rw-r--r--
pycore_optimizer.h	8.11 KB	-rw-r--r--
pycore_parking_lot.h	3.27 KB	-rw-r--r--
pycore_parser.h	2.04 KB	-rw-r--r--
pycore_pathconfig.h	658 B	-rw-r--r--
pycore_pyarena.h	2.79 KB	-rw-r--r--
pycore_pyatomic_ft_wrappers.h	7.87 KB	-rw-r--r--
pycore_pybuffer.h	510 B	-rw-r--r--
pycore_pyerrors.h	4.84 KB	-rw-r--r--
pycore_pyhash.h	2.75 KB	-rw-r--r--
pycore_pylifecycle.h	4.36 KB	-rw-r--r--
pycore_pymath.h	8.4 KB	-rw-r--r--
pycore_pymem.h	4.37 KB	-rw-r--r--
pycore_pymem_init.h	3.44 KB	-rw-r--r--
pycore_pystate.h	9.73 KB	-rw-r--r--
pycore_pystats.h	420 B	-rw-r--r--
pycore_pythonrun.h	758 B	-rw-r--r--
pycore_pythread.h	5.3 KB	-rw-r--r--
pycore_qsbr.h	4.81 KB	-rw-r--r--
pycore_range.h	346 B	-rw-r--r--
pycore_runtime.h	12.84 KB	-rw-r--r--
pycore_runtime_init.h	12.74 KB	-rw-r--r--
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pycore_semaphore.h	1.69 KB	-rw-r--r--
pycore_setobject.h	951 B	-rw-r--r--
pycore_signal.h	2.86 KB	-rw-r--r--
pycore_sliceobject.h	369 B	-rw-r--r--
pycore_stackref.h	5.06 KB	-rw-r--r--
pycore_strhex.h	1013 B	-rw-r--r--
pycore_structseq.h	963 B	-rw-r--r--
pycore_symtable.h	8.47 KB	-rw-r--r--
pycore_sysmodule.h	1.15 KB	-rw-r--r--
pycore_time.h	11.52 KB	-rw-r--r--
pycore_token.h	2.93 KB	-rw-r--r--
pycore_traceback.h	3.54 KB	-rw-r--r--
pycore_tracemalloc.h	4.43 KB	-rw-r--r--
pycore_tstate.h	1.32 KB	-rw-r--r--
pycore_tuple.h	820 B	-rw-r--r--
pycore_typeobject.h	8.67 KB	-rw-r--r--
pycore_typevarobject.h	924 B	-rw-r--r--
pycore_ucnhash.h	958 B	-rw-r--r--
pycore_unicodeobject.h	12.15 KB	-rw-r--r--
pycore_unicodeobject_generated...	129.04 KB	-rw-r--r--
pycore_unionobject.h	742 B	-rw-r--r--
pycore_uop_ids.h	10.03 KB	-rw-r--r--
pycore_uop_metadata.h	38.54 KB	-rw-r--r--
pycore_warnings.h	840 B	-rw-r--r--
pycore_weakref.h	3.25 KB	-rw-r--r--

Code Editor : pycore_pymath.h

#ifndef Py_INTERNAL_PYMATH_H
#define Py_INTERNAL_PYMATH_H
#ifdef __cplusplus
extern "C" {
#endif

#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
#endif

/* _Py_ADJUST_ERANGE1(x)
 * _Py_ADJUST_ERANGE2(x, y)
 * Set errno to 0 before calling a libm function, and invoke one of these
 * macros after, passing the function result(s) (_Py_ADJUST_ERANGE2 is useful
 * for functions returning complex results).  This makes two kinds of
 * adjustments to errno:  (A) If it looks like the platform libm set
 * errno=ERANGE due to underflow, clear errno. (B) If it looks like the
 * platform libm overflowed but didn't set errno, force errno to ERANGE.  In
 * effect, we're trying to force a useful implementation of C89 errno
 * behavior.
 * Caution:
 *    This isn't reliable.  C99 no longer requires libm to set errno under
 *        any exceptional condition, but does require +- HUGE_VAL return
 *        values on overflow.  A 754 box *probably* maps HUGE_VAL to a
 *        double infinity, and we're cool if that's so, unless the input
 *        was an infinity and an infinity is the expected result.  A C89
 *        system sets errno to ERANGE, so we check for that too.  We're
 *        out of luck if a C99 754 box doesn't map HUGE_VAL to +Inf, or
 *        if the returned result is a NaN, or if a C89 box returns HUGE_VAL
 *        in non-overflow cases.
 */
static inline void _Py_ADJUST_ERANGE1(double x)
{
    if (errno == 0) {
        if (x == Py_HUGE_VAL || x == -Py_HUGE_VAL) {
            errno = ERANGE;
        }
    }
    else if (errno == ERANGE && x == 0.0) {
        errno = 0;
    }
}

static inline void _Py_ADJUST_ERANGE2(double x, double y)
{
    if (x == Py_HUGE_VAL || x == -Py_HUGE_VAL ||
        y == Py_HUGE_VAL || y == -Py_HUGE_VAL)
    {
        if (errno == 0) {
            errno = ERANGE;
        }
    }
    else if (errno == ERANGE) {
        errno = 0;
    }
}

//--- HAVE_PY_SET_53BIT_PRECISION macro ------------------------------------
//
// The functions _Py_dg_strtod() and _Py_dg_dtoa() in Python/dtoa.c (which are
// required to support the short float repr introduced in Python 3.1) require
// that the floating-point unit that's being used for arithmetic operations on
// C doubles is set to use 53-bit precision.  It also requires that the FPU
// rounding mode is round-half-to-even, but that's less often an issue.
//
// If your FPU isn't already set to 53-bit precision/round-half-to-even, and
// you want to make use of _Py_dg_strtod() and _Py_dg_dtoa(), then you should:
//
//     #define HAVE_PY_SET_53BIT_PRECISION 1
//
// and also give appropriate definitions for the following three macros:
//
// * _Py_SET_53BIT_PRECISION_HEADER: any variable declarations needed to
//   use the two macros below.
// * _Py_SET_53BIT_PRECISION_START: store original FPU settings, and
//   set FPU to 53-bit precision/round-half-to-even
// * _Py_SET_53BIT_PRECISION_END: restore original FPU settings
//
// The macros are designed to be used within a single C function: see
// Python/pystrtod.c for an example of their use.

// Get and set x87 control word for gcc/x86
#ifdef HAVE_GCC_ASM_FOR_X87
#define HAVE_PY_SET_53BIT_PRECISION 1

// Functions defined in Python/pymath.c
extern unsigned short _Py_get_387controlword(void);
extern void _Py_set_387controlword(unsigned short);

#define _Py_SET_53BIT_PRECISION_HEADER                                  \
    unsigned short old_387controlword, new_387controlword
#define _Py_SET_53BIT_PRECISION_START                                   \
    do {                                                                \
        old_387controlword = _Py_get_387controlword();                  \
        new_387controlword = (old_387controlword & ~0x0f00) | 0x0200;   \
        if (new_387controlword != old_387controlword) {                 \
            _Py_set_387controlword(new_387controlword);                 \
        }                                                               \
    } while (0)
#define _Py_SET_53BIT_PRECISION_END                                     \
    do {                                                                \
        if (new_387controlword != old_387controlword) {                 \
            _Py_set_387controlword(old_387controlword);                 \
        }                                                               \
    } while (0)
#endif

// Get and set x87 control word for VisualStudio/x86.
// x87 is not supported in 64-bit or ARM.
#if defined(_MSC_VER) && !defined(_WIN64) && !defined(_M_ARM)
#define HAVE_PY_SET_53BIT_PRECISION 1

#include <float.h>                // __control87_2()

#define _Py_SET_53BIT_PRECISION_HEADER \
    unsigned int old_387controlword, new_387controlword, out_387controlword
    // We use the __control87_2 function to set only the x87 control word.
    // The SSE control word is unaffected.
#define _Py_SET_53BIT_PRECISION_START                                   \
    do {                                                                \
        __control87_2(0, 0, &old_387controlword, NULL);                 \
        new_387controlword =                                            \
          (old_387controlword & ~(_MCW_PC | _MCW_RC)) | (_PC_53 | _RC_NEAR); \
        if (new_387controlword != old_387controlword) {                 \
            __control87_2(new_387controlword, _MCW_PC | _MCW_RC,        \
                          &out_387controlword, NULL);                   \
        }                                                               \
    } while (0)
#define _Py_SET_53BIT_PRECISION_END                                     \
    do {                                                                \
        if (new_387controlword != old_387controlword) {                 \
            __control87_2(old_387controlword, _MCW_PC | _MCW_RC,        \
                          &out_387controlword, NULL);                   \
        }                                                               \
    } while (0)
#endif

// MC68881
#ifdef HAVE_GCC_ASM_FOR_MC68881
#define HAVE_PY_SET_53BIT_PRECISION 1
#define _Py_SET_53BIT_PRECISION_HEADER \
    unsigned int old_fpcr, new_fpcr
#define _Py_SET_53BIT_PRECISION_START                                   \
    do {                                                                \
        __asm__ ("fmove.l %%fpcr,%0" : "=g" (old_fpcr));                \
        /* Set double precision / round to nearest.  */                 \
        new_fpcr = (old_fpcr & ~0xf0) | 0x80;                           \
        if (new_fpcr != old_fpcr) {                                     \
              __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (new_fpcr));\
        }                                                               \
    } while (0)
#define _Py_SET_53BIT_PRECISION_END                                     \
    do {                                                                \
        if (new_fpcr != old_fpcr) {                                     \
            __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (old_fpcr));  \
        }                                                               \
    } while (0)
#endif

// Default definitions are empty
#ifndef _Py_SET_53BIT_PRECISION_HEADER
#  define _Py_SET_53BIT_PRECISION_HEADER
#  define _Py_SET_53BIT_PRECISION_START
#  define _Py_SET_53BIT_PRECISION_END
#endif

//--- _PY_SHORT_FLOAT_REPR macro -------------------------------------------

// If we can't guarantee 53-bit precision, don't use the code
// in Python/dtoa.c, but fall back to standard code.  This
// means that repr of a float will be long (17 significant digits).
//
// Realistically, there are two things that could go wrong:
//
// (1) doubles aren't IEEE 754 doubles, or
// (2) we're on x86 with the rounding precision set to 64-bits
//     (extended precision), and we don't know how to change
//     the rounding precision.
#if !defined(DOUBLE_IS_LITTLE_ENDIAN_IEEE754) && \
    !defined(DOUBLE_IS_BIG_ENDIAN_IEEE754) && \
    !defined(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754)
#  define _PY_SHORT_FLOAT_REPR 0
#endif

// Double rounding is symptomatic of use of extended precision on x86.
// If we're seeing double rounding, and we don't have any mechanism available
// for changing the FPU rounding precision, then don't use Python/dtoa.c.
#if defined(X87_DOUBLE_ROUNDING) && !defined(HAVE_PY_SET_53BIT_PRECISION)
#  define _PY_SHORT_FLOAT_REPR 0
#endif

#ifndef _PY_SHORT_FLOAT_REPR
#  define _PY_SHORT_FLOAT_REPR 1
#endif

#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_PYMATH_H */

${this.title}

Code Editor : pycore_pymath.h