大约有 48,000 项符合查询结果（耗时：0.0314秒） [XML]
What is the difference between memmove and memcpy?
... that way. Thats indeed relevant as most memmove implementations just do a XOR-swap.
– dhein
May 8 '15 at 11:25
3
...
How to remove an item for a OR'd enum?
...
What about xor(^)?
Given that the FLAG you are trying to remove is there, it will work.. if not, you will have to use an &.
public enum Colour
{
None = 0, // default value
RED = 2,
BLUE = 4,
GREEN = 8,
YELLOW ...
What is getattr() exactly and how do I use it?
...alues:
>>> dir(1000)
['__abs__', '__add__', ..., '__trunc__', '__xor__', 'bit_length', 'conjugate', 'denominator', 'from_bytes', 'imag', 'numerator', 'real', 'to_bytes']
>>> obj = 1000
>>> for attr_name in dir(obj):
... attr_value = getattr(obj, attr_name)
... pr...
How are echo and print different in PHP? [duplicate]
... is just about at the bottom
of the precedence list though. Only , AND OR XOR are lower.
Parameter(s). The grammar is: echo expression [, expression[,
expression] ... ] But echo ( expression, expression ) is not valid.
This would be valid: echo ("howdy"),("partner"); the same as: echo
"howdy","...
The tilde operator in Python
...wos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To support th...
Git: Remove committed file after push
... answered Feb 26 '14 at 12:25
xorxor
3,10511 gold badge1919 silver badges3030 bronze badges
...
How can I ensure that a division of integers is always rounded up?
...ositive by checking that the signs of both integers are identical. Integer xor operator '^' on the two values will result in a 0 sign-bit when this is the case, meaning a non-negative result, so the check (a ^ b) >= 0 determines that the result should have been positive before rounding. Also note...
`testl` eax against eax?
...rom the same bag of tricks that holds the idea of clearing a register with XOR EAX,EAX (which i saw on someone's license plate in Colorado!) rather than the obvious but maybe slower MOV EAX, #0 (i use an older notation).
In asm, like perl, TMTOWTDI.
...
Move all files except one
...iano Very cool command! Are there more mathematical operations like OR and XOR? I assume a pipe is for AND.
– Léo Léopold Hertz 준영
Mar 22 '09 at 3:39
...
Code Golf: Collatz Conjecture
...p ebx, 1
jne .loop
push ebx
push end
call printf
add esp, 16
xor eax, eax
ret
.usage:
mov ebx, [esp+0x08]
push dword [ebx+0x00]
push usage
call printf
add esp, 8
mov eax, 1
ret
msg db "%d --> ", 0
end db "%d", 10, 0
usage db "Usage: %s NUMBER", 10, 0
...