#ifndef Py_LIMITED_API #ifndef Py_LONGINTREPR_H #define Py_LONGINTREPR_H #ifdef __cplusplus extern "C" { #endif /* This is published for the benefit of "friends" marshal.c and _decimal.c. */ /* Parameters of the integer representation. There are two different sets of parameters: one set for 30-bit digits, stored in an unsigned 32-bit integer type, and one set for 15-bit digits with each digit stored in an unsigned short. The value of PYLONG_BITS_IN_DIGIT, defined either at configure time or in pyport.h, is used to decide which digit size to use. Type 'digit' should be able to hold 2*PyLong_BASE-1, and type 'twodigits' should be an unsigned integer type able to hold all integers up to PyLong_BASE*PyLong_BASE-1. x_sub assumes that 'digit' is an unsigned type, and that overflow is handled by taking the result modulo 2**N for some N > PyLong_SHIFT. The majority of the code doesn't care about the precise value of PyLong_SHIFT, but there are some notable exceptions: - long_pow() requires that PyLong_SHIFT be divisible by 5 - PyLong_{As,From}ByteArray require that PyLong_SHIFT be at least 8 - long_hash() requires that PyLong_SHIFT is *strictly* less than the number of bits in an unsigned long, as do the PyLong <-> long (or unsigned long) conversion functions - the Python int <-> size_t/Py_ssize_t conversion functions expect that PyLong_SHIFT is strictly less than the number of bits in a size_t - the marshal code currently expects that PyLong_SHIFT is a multiple of 15 - NSMALLNEGINTS and NSMALLPOSINTS should be small enough to fit in a single digit; with the current values this forces PyLong_SHIFT >= 9 The values 15 and 30 should fit all of the above requirements, on any platform. */ #if PYLONG_BITS_IN_DIGIT == 30 typedef uint32_t digit; typedef int32_t sdigit; /* signed variant of digit */ typedef uint64_t twodigits; typedef int64_t stwodigits; /* signed variant of twodigits */ #define PyLong_SHIFT 30 #define _PyLong_DECIMAL_SHIFT 9 /* max(e such that 10**e fits in a digit) */ #define _PyLong_DECIMAL_BASE ((digit)1000000000) /* 10 ** DECIMAL_SHIFT */ #elif PYLONG_BITS_IN_DIGIT == 15 typedef unsigned short digit; typedef short sdigit; /* signed variant of digit */ typedef unsigned long twodigits; typedef long stwodigits; /* signed variant of twodigits */ #define PyLong_SHIFT 15 #define _PyLong_DECIMAL_SHIFT 4 /* max(e such that 10**e fits in a digit) */ #define _PyLong_DECIMAL_BASE ((digit)10000) /* 10 ** DECIMAL_SHIFT */ #else #error "PYLONG_BITS_IN_DIGIT should be 15 or 30" #endif #define PyLong_BASE ((digit)1 << PyLong_SHIFT) #define PyLong_MASK ((digit)(PyLong_BASE - 1)) #if PyLong_SHIFT % 5 != 0 #error "longobject.c requires that PyLong_SHIFT be divisible by 5" #endif /* Long integer representation. The absolute value of a number is equal to SUM(for i=0 through abs(ob_size)-1) ob_digit[i] * 2**(SHIFT*i) Negative numbers are represented with ob_size < 0; zero is represented by ob_size == 0. In a normalized number, ob_digit[abs(ob_size)-1] (the most significant digit) is never zero. Also, in all cases, for all valid i, 0 <= ob_digit[i] <= MASK. The allocation function takes care of allocating extra memory so that ob_digit[0] ... ob_digit[abs(ob_size)-1] are actually available. CAUTION: Generic code manipulating subtypes of PyVarObject has to aware that ints abuse ob_size's sign bit. */ struct _longobject { PyObject_VAR_HEAD digit ob_digit[1]; }; PyAPI_FUNC(PyLongObject *) _PyLong_New(Py_ssize_t); /* Return a copy of src. */ PyAPI_FUNC(PyObject *) _PyLong_Copy(PyLongObject *src); #ifdef __cplusplus } #endif #endif /* !Py_LONGINTREPR_H */ #endif /* Py_LIMITED_API */
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Python-ast.h | File | 21.75 KB | 0644 |
|
Python.h | File | 3.15 KB | 0644 |
|
abstract.h | File | 46.34 KB | 0644 |
|
accu.h | File | 1016 B | 0644 |
|
asdl.h | File | 1.18 KB | 0644 |
|
ast.h | File | 477 B | 0644 |
|
bitset.h | File | 792 B | 0644 |
|
bltinmodule.h | File | 264 B | 0644 |
|
boolobject.h | File | 886 B | 0644 |
|
bytearrayobject.h | File | 2.06 KB | 0644 |
|
bytes_methods.h | File | 3.12 KB | 0644 |
|
bytesobject.h | File | 8.17 KB | 0644 |
|
cellobject.h | File | 701 B | 0644 |
|
ceval.h | File | 8.32 KB | 0644 |
|
classobject.h | File | 1.63 KB | 0644 |
|
code.h | File | 5.81 KB | 0644 |
|
codecs.h | File | 6.63 KB | 0644 |
|
compile.h | File | 2.11 KB | 0644 |
|
complexobject.h | File | 1.76 KB | 0644 |
|
datetime.h | File | 9.19 KB | 0644 |
|
descrobject.h | File | 2.89 KB | 0644 |
|
dictobject.h | File | 7.01 KB | 0644 |
|
dtoa.h | File | 458 B | 0644 |
|
dynamic_annotations.h | File | 21.94 KB | 0644 |
|
enumobject.h | File | 253 B | 0644 |
|
errcode.h | File | 1.46 KB | 0644 |
|
eval.h | File | 597 B | 0644 |
|
fileobject.h | File | 1.61 KB | 0644 |
|
fileutils.h | File | 3.44 KB | 0644 |
|
floatobject.h | File | 4.68 KB | 0644 |
|
frameobject.h | File | 3.45 KB | 0644 |
|
funcobject.h | File | 3.98 KB | 0644 |
|
genobject.h | File | 3.5 KB | 0644 |
|
graminit.h | File | 1.92 KB | 0644 |
|
grammar.h | File | 2.03 KB | 0644 |
|
import.h | File | 4.13 KB | 0644 |
|
intrcheck.h | File | 513 B | 0644 |
|
iterobject.h | File | 567 B | 0644 |
|
listobject.h | File | 2.83 KB | 0644 |
|
longintrepr.h | File | 3.67 KB | 0644 |
|
longobject.h | File | 8.27 KB | 0644 |
|
marshal.h | File | 803 B | 0644 |
|
memoryobject.h | File | 2.7 KB | 0644 |
|
metagrammar.h | File | 253 B | 0644 |
|
methodobject.h | File | 3.76 KB | 0644 |
|
modsupport.h | File | 7.15 KB | 0644 |
|
moduleobject.h | File | 2.23 KB | 0644 |
|
namespaceobject.h | File | 349 B | 0644 |
|
node.h | File | 1007 B | 0644 |
|
object.h | File | 39.43 KB | 0644 |
|
objimpl.h | File | 13.91 KB | 0644 |
|
odictobject.h | File | 1.26 KB | 0644 |
|
opcode.h | File | 4.95 KB | 0644 |
|
osdefs.h | File | 691 B | 0644 |
|
osmodule.h | File | 291 B | 0644 |
|
parsetok.h | File | 2.82 KB | 0644 |
|
patchlevel.h | File | 1.1 KB | 0644 |
|
pgen.h | File | 253 B | 0644 |
|
pgenheaders.h | File | 1.15 KB | 0644 |
|
py_curses.h | File | 4.21 KB | 0644 |
|
pyarena.h | File | 2.68 KB | 0644 |
|
pyatomic.h | File | 7.94 KB | 0644 |
|
pycapsule.h | File | 1.69 KB | 0644 |
|
pyconfig.h | File | 3.99 KB | 0644 |
|
pyctype.h | File | 1.29 KB | 0644 |
|
pydebug.h | File | 1.18 KB | 0644 |
|
pydtrace.h | File | 1.92 KB | 0644 |
|
pyerrors.h | File | 16.82 KB | 0644 |
|
pyexpat.h | File | 2.39 KB | 0644 |
|
pyfpe.h | File | 8.27 KB | 0644 |
|
pygetopt.h | File | 410 B | 0644 |
|
pyhash.h | File | 4.04 KB | 0644 |
|
pylifecycle.h | File | 3.98 KB | 0644 |
|
pymacconfig.h | File | 2.92 KB | 0644 |
|
pymacro.h | File | 3.42 KB | 0644 |
|
pymath.h | File | 8.12 KB | 0644 |
|
pymem.h | File | 8.36 KB | 0644 |
|
pyport.h | File | 26.93 KB | 0644 |
|
pystate.h | File | 10.88 KB | 0644 |
|
pystrcmp.h | File | 436 B | 0644 |
|
pystrhex.h | File | 495 B | 0644 |
|
pystrtod.h | File | 1.45 KB | 0644 |
|
pythonrun.h | File | 6.62 KB | 0644 |
|
pythread.h | File | 2.92 KB | 0644 |
|
pytime.h | File | 7.43 KB | 0644 |
|
rangeobject.h | File | 629 B | 0644 |
|
setobject.h | File | 3.25 KB | 0644 |
|
sliceobject.h | File | 2.43 KB | 0644 |
|
structmember.h | File | 1.97 KB | 0644 |
|
structseq.h | File | 1.32 KB | 0644 |
|
symtable.h | File | 4.88 KB | 0644 |
|
sysmodule.h | File | 1.32 KB | 0644 |
|
token.h | File | 1.9 KB | 0644 |
|
traceback.h | File | 3.56 KB | 0644 |
|
tupleobject.h | File | 2.39 KB | 0644 |
|
typeslots.h | File | 2.2 KB | 0644 |
|
ucnhash.h | File | 1.03 KB | 0644 |
|
unicodeobject.h | File | 79.86 KB | 0644 |
|
warnings.h | File | 1.65 KB | 0644 |
|
weakrefobject.h | File | 2.8 KB | 0644 |
|