Comparing Two Vectors in an If Statement

Comparing two vectors in an if statement

all is one option:

> A <- c("A", "B", "C", "D")
> B <- A
> C <- c("A", "C", "C", "E")

> all(A==B)
[1] TRUE
> all(A==C)
[1] FALSE

But you may have to watch out for recycling:

> D <- c("A","B","A","B")
> E <- c("A","B")
> all(D==E)
[1] TRUE
> all(length(D)==length(E)) && all(D==E)
[1] FALSE

The documentation for length says it currently only outputs an integer of length 1, but that it may change in the future, so that's why I wrapped the length test in all.

Compare 3 glsl vectors

Ordering comparisons and equality comparisons are not the same thing. It's easy to understand what it means for a vector to be equal/not-equal to another. But what would cause a vector to be "less than" another? Are you comparing the distance from the zero point of the space? Are you comparing each component individually? If so, what happens if some components are less while others are not less?

GLSL has vector relational functions to deal with these varying circumstances. If the question you want to ask is "are any of these greater than 1", then you can do that with any(greaterThan(diffuse.rgb, vec3(1))). If you want to ask "are all of these greater than 1," you use all(greaterThan(diffuse.rgb, vec3(1))).

Compare two arrays and set an if else

NSArray has an instance method called containsObject: exactly for this.

For further clarification, check this out.

How do I compare two values from two vectors and then update the vector values in C++?

In every single loop, you're assigning the value of the iterators to the strings first_sequence and second_sequence. You're not ever using the values in the vectors themselves.

Comparing a vector and a vector of struct for matching values - c++

In your if statement you are trying to compare an element of randomnums which is of type std::string to an element of resultvec which is of type past_result. In order to compare the actual winningnums value of the struct, change your if-statement to:

if(randomnums.at(i) == resultvec.at(i).winningnums)
{
    //output result
}

How to compare two vectors for equality element by element in C++?

Check std::mismatch method of C++.

comparing vectors has been discussed on DaniWeb forum and also answered.

C++: Comparing two vectors

Check the below SO post. will helpful for you. they have achieved the same with different-2 method.

Compare two vectors C++

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