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Code Golf: Lasers
...ation in the main loop, we update $d if the beam is currently on a mirror. XOR'ing by 3 gives the correct behavior for a \ mirror and XOR'ing by 1 gives the correct behavior for a / mirror.
$d^=3*/\\/+m</>
Next, the current position $r is updated accoring to the current direction.
$r+=(1,-...
What is the best way to use a HashMap in C++?
...al hash values for first,
// second and third and combine them using XOR
// and bit shifting:
return ((hash<string>()(k.first)
^ (hash<string>()(k.second) << 1)) >> 1)
^ (hash<int>()(k.third) << 1);
}
};
}
...
how to use #ifdef with an OR condition?
...ex condition.
Further-
AND: #if defined LINUX && defined ANDROID
XOR: #if defined LINUX ^ defined ANDROID
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How can I find the data structure that represents mine layout of Minesweeper in memory?
...
.text:01003687 push edi
.text:01003688 xor edi, edi
.text:0100368A cmp eax, dword_1005334
.text:01003690 mov dword_1005164, edi
.text:01003696 jnz short loc_10036A4
.text:01003696
.text:01003698 ...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
...and Y rows where there is no match to the other table, ie an exclusive-or (XOR)
"cross" -- cross join or Cartesian product with each row of X matched to each row of Y
The default value is join="all.y" which corresponds to the present default.
The "all", "all.x" and "all.y" string values correspo...
Convert boolean result into number/integer
...
Nice one. Also you could use "Boolean ^ 0". OR or XOR works.
– F8ER
Aug 22 '16 at 22:20
...
如何在Visual Studio中运行和调试汇编代码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... _TCHAR* argv[])
{
int a = 1;
__asm{
xor eax, eax
mov a, eax
}
printf("hello:%d\n", a);
return 0;
}
运行结果：
下断点，F5调试：
Ctrl + Alt + D切换反汇编视图：
vs 调试 汇编代...
如何在Visual Studio中运行和调试汇编代码 - 其他 - 清泛IT社区，为创新赋能！
...p;__asm{
xor eax, eax
mov a, eax
}
printf("hello:%d\n", a);
...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...,8), %rbp
addq $4, %rdx
# Reuse "rax" for all the popcnts.
xor %rax, %rax # Break the cross-iteration dependency by zeroing "rax".
popcnt %r9, %rax
add %rax, %rcx
popcnt %r10, %rax
add %rax, %rsi
popcnt %r11, %rax
add %rax, %r8
popcnt %rbp, ...
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","...