sometimes | A few hacks n ' helpers to make your code more fun | Learning library

Hey guys given the example below in C when operating on a 64bit system as i understand, a pointer is 8 byte. Wouldn't the calloc here allocate too little memory as it takes the sizeof(int) which is 4 bytes? Thing is, this still works. Does it overwrite the memory? Would love some clarity on this.

Bonus question: if i remove the type casting (int*) i sometimes get a warning "invalid conversion from 'void*' to 'int*', does this mean it still works considering the warning?

I have been struggling with this error for quite sometimes and I am wondering if someone could help me get this running

I have

Sometimes I find myself needing to initialize an object with a property that matches the property of another object. When the property name is the same, I want to be able to use shorthand syntax.

(For the purposes of the examples in this question, I'll just keep the additional properties to a tag: 1 property, and I'll reuse message in subsequent examples as the input/source of the information. I also indicate an extra unwanted property of message because I'm cherry-picking properties and do not intend to just use Object.assign to assign all the properties of message to the result.)

I’d be grateful for suggestions as to how to remap letters in strings in a map-specified way.

Suppose, for instance, I want to change all As to Bs, all Bs to Ds, and all Ds to Fs. If I do it like this, it doesn’t do what I want since it applies the transformations successively:

I am aware that floating-point numbers are tricky. But today I encountered a case that I cannot explain (and cannot reproduce using a standalone C++ code).

The code within a large project looks like this:

I am trying to make a popup for messages such as "Action completed" and I want a button on it to close the popup (A simple OK which quits only the popup). It also sometimes moves behind the window which is annoying. I have some code for the button but it has an issue with the geometry of the shape since the shape isn't exactly defined as it is variable through the size of font and text length.

I want to select a value from a drop down menu that has several menus inside it

I use the following code:

I asked this question on stackoverflow STL passing object

I got to know that we pass objects which in tern call the compare operator in them and compare our values and gives us a result. All good.

Now in this piece of code:

I'm currently trying out Android Compose. I have a Text that shows price of a crypto coin. If a price goes up the color of a text should be green, but if a price goes down it should be red. The function is called when a user clicks a button. The problem is that the function showPrice() is called multiple times (sometimes just once, sometimes 2-4 times). And because of that the user can see the wrong color. What can I do to ensure that it's only called once?

MainActivity: