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from rpython.rtyper.lltypesystem.lltype import GcArray, Array, Char, malloc
from rpython.rlib.rarithmetic import r_uint, r_longlong, r_ulonglong
from rpython.rlib import jit
CHAR_ARRAY = GcArray(Char)
def ll_unsigned(i):
if isinstance(i, r_longlong) or isinstance(i, r_ulonglong):
return r_ulonglong(i)
else:
return r_uint(i)
@jit.elidable
def ll_int2dec(val):
from rpython.rtyper.lltypesystem.rstr import mallocstr
sign = int(val < 0)
if sign:
val = ll_unsigned(-val)
else:
val = ll_unsigned(val)
len = 0
i = val
while i:
len += 1
i //= 10
total_len = sign + len + int(val == 0)
result = mallocstr(total_len)
if sign:
result.chars[0] = '-'
elif val == 0:
result.chars[0] = '0'
j = 0
while j < len:
result.chars[total_len - j - 1] = chr(val % 10 + ord('0'))
val //= 10
j += 1
return result
hex_chars = malloc(Array(Char), 16, immortal=True)
for i in range(16):
hex_chars[i] = "%x" % i
@jit.elidable
def ll_int2hex(i, addPrefix):
from rpython.rtyper.lltypesystem.rstr import mallocstr
temp = malloc(CHAR_ARRAY, 20)
len = 0
sign = 0
if i < 0:
sign = 1
i = ll_unsigned(-i)
else:
i = ll_unsigned(i)
if i == 0:
len = 1
temp[0] = '0'
else:
while i:
temp[len] = hex_chars[i & 0xf]
i >>= 4
len += 1
len += sign
if addPrefix:
len += 2
result = mallocstr(len)
result.hash = 0
j = 0
if sign:
result.chars[0] = '-'
j = 1
if addPrefix:
result.chars[j] = '0'
result.chars[j+1] = 'x'
j += 2
while j < len:
result.chars[j] = temp[len-j-1]
j += 1
return result
@jit.elidable
def ll_int2oct(i, addPrefix):
from rpython.rtyper.lltypesystem.rstr import mallocstr
if i == 0:
result = mallocstr(1)
result.hash = 0
result.chars[0] = '0'
return result
temp = malloc(CHAR_ARRAY, 25)
len = 0
sign = 0
if i < 0:
sign = 1
i = ll_unsigned(-i)
else:
i = ll_unsigned(i)
while i:
temp[len] = hex_chars[i & 0x7]
i >>= 3
len += 1
len += sign
if addPrefix:
len += 1
result = mallocstr(len)
result.hash = 0
j = 0
if sign:
result.chars[0] = '-'
j = 1
if addPrefix:
result.chars[j] = '0'
j += 1
while j < len:
result.chars[j] = temp[len-j-1]
j += 1
return result
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