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__FILE__, __LINE__, and __FUNCTION__ usage in C++
... It's possible with constexpr that uses a lookup table or bitwise XOR, etc. to obfuscate any string literals in your binary. There are various examples out there if you search. Of course obfuscation is just obfuscation and not security, but if you don't want to make your files and functions...
How do I decode a base64 encoded string?
...
The m000493 method seems to perform some kind of XOR encryption. This means that the same method can be used for both encrypting and decrypting the text. All you have to do is reverse m0001cd:
string p0 = Encoding.UTF8.GetString(Convert.FromBase64String("OBFZDT..."));
str...
What is the significance of initializing direction arrays below with given values when developing ch
...6.
.1X0.
.724.
.....
The way it is set up, if you do ^1 (^ being bitwise XOR) on the index you get the opposite direction - 0 and 1 are opposites, 2 and 3 are opposites and so on. (Another way to set it up is to go clockwise starting at north - then ^4 gets you the opposite direction.)
Now you ca...
Best way to find the intersection of multiple sets?
...of "take the sum of all these", "take the product of all these", "take the xor of all these", what you are looking for is the reduce function:
from operator import and_
from functools import reduce
print(reduce(and_, [{1,2,3},{2,3,4},{3,4,5}])) # = {3}
or
print(reduce((lambda x,y: x&y), [{1,...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... add al, 0xA
08048D7A 30 06 xor [esi], al
08048D7C E2 F4 loop Label_08048D72 (08048D72) ; (near 0xF4)
08048D7E BA 18 A2 04 08 mov edx, 0x804A218
08048D83 BE F0 A3 04 08 ...
Why is address zero used for the null pointer?
... costly than now. The number zero can be conveniently calculated using an XOR instruction or without the need to load an immediate value. Depending upon the architecture, this could potentially save space.
– Sparky
May 3 '10 at 17:46
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How to add a 'or' condition in #ifdef
...f
Further-
AND: #if defined CONDITION1 && defined CONDITION2
XOR: #if defined CONDITION1 ^ defined CONDITION2
AND NOT: #if defined CONDITION1 && !defined CONDITION2
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Does Python have an ordered set?
... issubset = __le__
issuperset = __ge__
symmetric_difference = __xor__
symmetric_difference_update = __ixor__
union = __or__
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LaTeX source code listing like in professional books
... VT = np.zeros((n*m,1), int) #dummy variable
#compute the bitwise xor matrix
M1 = bitxormatrix(genl1)
M2 = np.triu(bitxormatrix(genl2),1)
for i in range(m-1):
for j in range(i+1, m):
[r,c] = np.where(M2 == M1[i,j])
for k in range(len(r)):
...
How to toggle a boolean?
...ing converted to a number (that is either 0 or 1), you can use the Bitwise XOR Assignment Operator. Like so:
bool ^= true; //- toggle value.
This is especially good if you use long, descriptive boolean names, EG:
var inDynamicEditMode = true; // Value is: true (boolean)
inDynamicEditMod...