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How to know if two arrays have the same values
...s and order of each value) you could do this by using lodash:
_.isEmpty(_.xor(array1, array2))
Short, simple and pretty!
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...route 功能
在主机A 上执行命令
route add -host 172.16.110.80 gw 172.16.100.253
route add -host 172.16.110.80 gw 172.16.100.254
在主机B 上执行命令
route add -host 172.16.100.50 gw 172.16.100.253
route add -host 172.16.100.50 gw 172.16.100.254
执行ping ...
Approximate cost to access various caches and main memory?
...2 KB TEST-LOAD ( immune to attempts to OverClock PCIe_BUS_CLK 100-105-110-115 [MHz] ) [D:4.9.3]
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| Host-side
| cudaHostRegister( void *ptr, size_t size, unsigned int flags )
| ...
Show current assembly instruction in GDB
...<exit> │
│0x7ffff740d774 <__libc_start_main+244> xor %edx,%edx │
│0x7ffff740d776 <__libc_start_main+246> jmpq 0x7ffff740d6b9 <__libc_start│
│0x7ffff740d77b <__libc_start_main+251> mov 0x39ca2e(%rip),%rax #│
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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
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Another related trick is to use XOR EAX, EAX because XOR RAX, RAX would need an REX prefix.
– Neil
Oct 2 '13 at 9:12
3
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Programmer Puzzle: Encoding a chess board state throughout a game
... possible output is:
White Black
Empty 0
Pawn 110 100
Rook 11111 11110
Knight 10110 10101
Bishop 10100 11100
Queen 111010 111011
King 101110 101111
For a starting position this equates to 32 x 1 + 16 x 3 + 12 x 5 + 4 x 6 = 164 bits.
Stat...
C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...形继承结构。C100和C101通过虚继承共享同一个父类C041。C110则从C100和C101多重继承而来。
struct C041
{
C041() : c_(0x01) {}
virtual void foo() { c_ = 0x02; }
char c_;
};
struct C100 : public virtual C041
{
C100() : c_(0x02) {}
char c_;
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Tetris-ing an array
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Well, considering that you can use XOR in this situation to find the common parts of the string. Any time you xor two bytes that are the same, you get a nullbyte as the output. So we can use that to our advantage:
$first = $array[0];
$length = strlen($first...
mfc110d.dll!ATL::CSimpleStringT::~CSimpleStringT() 行 291 - 更多技术 -...
mfc110d.dll!ATL::CSimpleStringT::~CSimpleStringT() 行 291> msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 C++ msvcr110d.dll!_free_dbg_nolock(void * pUserDa...> msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 C++
msvcr110d.dll!_free_dbg_nolock(void * p...
Try-catch speeding up my code?
...ush esi
[0005] push ebx
[0006] sub esp,1Ch
[0009] xor eax,eax
[000b] mov dword ptr [ebp-20h],eax
[000e] mov dword ptr [ebp-1Ch],eax
[0011] mov dword ptr [ebp-18h],eax
[0014] mov dword ptr [ebp-14h],eax
[0017] xor eax,eax
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