c++,struct,quicksort,boolean-operations

Try the following #include <algorithm> //... struct type{ int a,b,w; bool operator<(const type& A) const{ return w<A.w; }; }; type edge[6]; //... std::sort( edge, edge + 6 ); Or #include <algorithm> #include <iterator> //... struct type{ int a,b,w; bool operator<(const type& A) const{ return w<A.w; }; }; type edge[6]; //......

sql-server,tsql,sql-server-2012,boolean-operations,boolean-algebra

You can use ^ (exclusive or) to flip a bit. For example: set @input = 15 set @bit = 4 set @result = @input ^ power(2, @bit - 1) In a binary system, multiplying by two shifts all the bits one place to the left. So you can implement a...

c#,automapper,equals,boolean-operations

Both results should return true. I have tested your same scenario above and it does return true in both cases. Please see below screenshot. The boolean class overrides the Equals method as follows: public override bool Equals(object obj) { if (!(obj as bool)) { return false; } return this ==...

performance,boolean,julia-lang,boolean-operations

First of all, a valid question is why is the for loop version slow. Its partly because randbool gives a BitArray, not a normal array. I decided to compare with Array{Bool} out of curiosity. I was able to speed it up a bit - I think you are probably at...

php,variables,boolean-operations

if(in_array('yes', array($var1, $var2, $var3)) { $var4 = 'anothervalue'; } Another way to do this would be: if($var1 == 'yes' || $var2 == 'yes' || $var3 == 'yes') { $var4 = 'anothervalue'; } ...

c++,bit-fields,boolean-operations

The main reason would be that std::vector<bool> is special, and its specification specifically permits an implementation to minimise memory usage. For vectors of anything other than bool, the reference type can actually be a true reference (i.e. std::vector<int>::reference can actually be an int &) - usually directly referencing an element...

r,search,boolean,boolean-logic,boolean-operations

For convenience, record the length of the number of thresholds n = length(list_n) Represent the vector of TRUE and FALSE as a run-length encoding, remembering the length of each run for convenience r = rle(TFvec); l = r$length Find possible starting locations idx = which(l >= list_n[1] & r$value) Make...

boolean,naming-conventions,boolean-logic,boolean-operations

An expression like "true AND false" is called a contradiction. It always results in false. The truth table of such an expression has nothing but false/zero values as output. An alternative term is paradox. The opposite is called tautology, an expression or formula which always results in true....

javascript,if-statement,boolean-operations

You need to use: if (tanksize !== 1 && tanksize !== 2) { with the && operator, or if (!(tanksize ===1 || tanksize === 2)) { In your code, you have the first block executing any time the value is not 1 or is not 2, which equates to it...

python,arrays,python-2.7,numpy,boolean-operations

It would appear that numpy.bool_ behaves slightly differently to vanilla Python bool: >>> int(True+True) == int(True) + int(True) True >>> int(numpy.bool_(1)+numpy.bool_(1)) == int(numpy.bool_(1)) + int(numpy.bool_(1)) False This is because: >>> True+True 2 >>> numpy.bool_(1)+numpy.bool_(1) True >>> int(numpy.bool_(1)+numpy.bool_(1)) 1 Basically, the addition operation for numpy.bool_ is logical, rather than numerical; to...