def test_parse_digit_string(self):
from rpython.rlib.rbigint import parse_digit_string
class Parser:
def __init__(self, base, sign, digits):
self.base = base
self.sign = sign
self.next_digit = iter(digits + [-1]).next
x = parse_digit_string(Parser(10, 1, [6]))
assert x.eq(rbigint.fromint(6))
x = parse_digit_string(Parser(10, 1, [6, 2, 3]))
assert x.eq(rbigint.fromint(623))
x = parse_digit_string(Parser(10, -1, [6, 2, 3]))
assert x.eq(rbigint.fromint(-623))
x = parse_digit_string(Parser(16, 1, [0xA, 0x4, 0xF]))
assert x.eq(rbigint.fromint(0xA4F))
num = 0
for i in range(36):
x = parse_digit_string(Parser(36, 1, range(i)))
assert x.eq(rbigint.fromlong(num))
num = num * 36 + i
x = parse_digit_string(Parser(16, -1, range(15, -1, -1) * 99))
assert x.eq(rbigint.fromlong(long('-0x' + 'FEDCBA9876543210' * 99,
16)))
assert x.tobool() is True
x = parse_digit_string(Parser(7, 1, [0, 0, 0]))
assert x.tobool() is False
x = parse_digit_string(Parser(7, -1, [0, 0, 0]))
assert x.tobool() is False
def test_parse_digit_string(self):
from rpython.rlib.rbigint import parse_digit_string
class Parser:
def __init__(self, base, sign, digits):
self.base = base
self.sign = sign
self.next_digit = iter(digits + [-1]).next
x = parse_digit_string(Parser(10, 1, [6]))
assert x.eq(rbigint.fromint(6))
x = parse_digit_string(Parser(10, 1, [6, 2, 3]))
assert x.eq(rbigint.fromint(623))
x = parse_digit_string(Parser(10, -1, [6, 2, 3]))
assert x.eq(rbigint.fromint(-623))
x = parse_digit_string(Parser(16, 1, [0xA, 0x4, 0xF]))
assert x.eq(rbigint.fromint(0xA4F))
num = 0
for i in range(36):
x = parse_digit_string(Parser(36, 1, range(i)))
assert x.eq(rbigint.fromlong(num))
num = num * 36 + i
x = parse_digit_string(Parser(16, -1, range(15,-1,-1)*99))
assert x.eq(rbigint.fromlong(long('-0x' + 'FEDCBA9876543210'*99, 16)))
assert x.tobool() is True
x = parse_digit_string(Parser(7, 1, [0, 0, 0]))
assert x.tobool() is False
x = parse_digit_string(Parser(7, -1, [0, 0, 0]))
assert x.tobool() is False
def test_parse_digit_string(self):
from rpython.rlib.rbigint import parse_digit_string
class Parser:
def __init__(self, base, sign, digits):
self.base = base
self.sign = sign
self.i = 0
self._digits = digits
def next_digit(self):
i = self.i
if i == len(self._digits):
return -1
self.i = i + 1
return self._digits[i]
def prev_digit(self):
i = self.i - 1
assert i >= 0
self.i = i
return self._digits[i]
x = parse_digit_string(Parser(10, 1, [6]))
assert x.eq(rbigint.fromint(6))
x = parse_digit_string(Parser(10, 1, [6, 2, 3]))
assert x.eq(rbigint.fromint(623))
x = parse_digit_string(Parser(10, -1, [6, 2, 3]))
assert x.eq(rbigint.fromint(-623))
x = parse_digit_string(Parser(16, 1, [0xA, 0x4, 0xF]))
assert x.eq(rbigint.fromint(0xA4F))
num = 0
for i in range(36):
x = parse_digit_string(Parser(36, 1, range(i)))
assert x.eq(rbigint.fromlong(num))
num = num * 36 + i
x = parse_digit_string(Parser(16, -1, range(15, -1, -1) * 99))
assert x.eq(rbigint.fromlong(long('-0x' + 'FEDCBA9876543210' * 99,
16)))
assert x.tobool() is True
x = parse_digit_string(Parser(7, 1, [0, 0, 0]))
assert x.tobool() is False
x = parse_digit_string(Parser(7, -1, [0, 0, 0]))
assert x.tobool() is False
for base in [2, 4, 8, 16, 32]:
for inp in [[0], [1], [1, 0], [0, 1], [1, 0, 1], [1, 0, 0, 1],
[1, 0, 0, base - 1, 0, 1],
[base - 1, 1, 0, 0, 0, 1, 0], [base - 1]]:
inp = inp * 97
x = parse_digit_string(Parser(base, -1, inp))
num = sum(inp[i] * (base**(len(inp) - 1 - i))
for i in range(len(inp)))
assert x.eq(rbigint.fromlong(-num))
def test_parse_digit_string(self):
from rpython.rlib.rbigint import parse_digit_string
class Parser:
def __init__(self, base, sign, digits):
self.base = base
self.sign = sign
self.i = 0
self._digits = digits
def next_digit(self):
i = self.i
if i == len(self._digits):
return -1
self.i = i + 1
return self._digits[i]
def prev_digit(self):
i = self.i - 1
assert i >= 0
self.i = i
return self._digits[i]
x = parse_digit_string(Parser(10, 1, [6]))
assert x.eq(rbigint.fromint(6))
x = parse_digit_string(Parser(10, 1, [6, 2, 3]))
assert x.eq(rbigint.fromint(623))
x = parse_digit_string(Parser(10, -1, [6, 2, 3]))
assert x.eq(rbigint.fromint(-623))
x = parse_digit_string(Parser(16, 1, [0xA, 0x4, 0xF]))
assert x.eq(rbigint.fromint(0xA4F))
num = 0
for i in range(36):
x = parse_digit_string(Parser(36, 1, range(i)))
assert x.eq(rbigint.fromlong(num))
num = num * 36 + i
x = parse_digit_string(Parser(16, -1, range(15,-1,-1)*99))
assert x.eq(rbigint.fromlong(long('-0x' + 'FEDCBA9876543210'*99, 16)))
assert x.tobool() is True
x = parse_digit_string(Parser(7, 1, [0, 0, 0]))
assert x.tobool() is False
x = parse_digit_string(Parser(7, -1, [0, 0, 0]))
assert x.tobool() is False
for base in [2, 4, 8, 16, 32]:
for inp in [[0], [1], [1, 0], [0, 1], [1, 0, 1], [1, 0, 0, 1],
[1, 0, 0, base-1, 0, 1], [base-1, 1, 0, 0, 0, 1, 0],
[base-1]]:
inp = inp * 97
x = parse_digit_string(Parser(base, -1, inp))
num = sum(inp[i] * (base ** (len(inp)-1-i))
for i in range(len(inp)))
assert x.eq(rbigint.fromlong(-num))
def string_to_bigint(s, base=10, parser=None):
"""As string_to_int(), but ignores an optional 'l' or 'L' suffix
and returns an rbigint."""
if parser is None:
s = literal = strip_spaces(s)
if (s.endswith('l') or s.endswith('L')) and base < 22:
# in base 22 and above, 'L' is a valid digit! try: long('L',22)
s = s[:-1]
p = NumberStringParser(s, literal, base, 'long')
else:
p = parser
return parse_digit_string(p)