assign

Ok so I have never worked with fstream before or opened and read and files in a program. My instructor just gave a few lines of code that open, read, and close a text file. I'm supposed to take the data out of the text file and put it into separate nodes in a linked list and then go on to do other things with it which is not important because I know how to do it. My problem is that I don't know how to a assign these values to the struct values. The txt file looks like this: Clark Kent 55000 2500 0.07 Lois Lane 56000 1500 0.06 Tony Stark 34000 2000 0.05 … I have created a structure called

I'm programming in C and wonder if it's possible to assign multiple values at once to a multi-dimensional array? I have tried some technique but all have failed! I’m NOT interested to loop through the array to assign values (I want the fasted way to assign new values to all index in the array). The array I’m working with: ary[4][4]. Since an array is not a modifiable lvalue, it cannot appear on the left side of an assignment. You can initialize it and you can assign individual members via indexing. 6.3.2.1 A modifiable lvalue is an lvalue that does not have array type, does not have ... And a

I am trying to rename a variable over several data frames, but assign wont work. Here is the code I am trying assign(colnames(eval(as.name(DataFrameX)))[[3]], "<- NewName") # The idea is, go through every dataset, and change the name of column 3 to # "NewName" in all of them This won't return any error (All other versions I could think of returned some kind of error), but it doesn't change the variable name either. I am using a loop to create several data frames and different variables within each, now I need to rename some of those variables so that the data frames can be merged in one at a

Just started Haskell, it's said that everything in Haskell is "immutable" except IO package. So when I bind a name to something, it's always something immutable? Question, like below: Prelude> let removeLower x=[c|c<-x, c `elem` ['A'..'Z']] Prelude> removeLower "aseruiiUIUIdkf" "UIUI" So here: 1. “removeLower" is an immutable? Even it's a function object? But I can still use "let" to assign something else to this name. 2. inside the function "c<-x" seems that "c" is a variable. It is assigned by list x's values. I'm using the word "variable" from C language, not sure how Haskell name all its

While reading part of a book about 3D graphics I came across the following assignment: const float vertexPositions[] = { 0.75f, 0.75f, 0.0f, 1.0f, 0.75f, -0.75f, 0.0f, 1.0f, -0.75f, -0.75f, 0.0f, 1.0f, }; Why is the f suffix necessary? Can the type of the literals not be determined from the type of the variable? I believe that without the f float literals are interpreted as doubles, but why when the array is clearly of type float? The float array initialization in your example is fine in C, as it would be if it used double constants. For the values at hand, it would also be fine if it were a

I just followed the joomla tutorials on how to create the "perfect" MVC joomla component. However, my problem is that I don't know yet how to assign it to a menu. I thought that my component would then just show up when I select a "menu item type", but my component is not on this list. I've made some research on Google, but I cannot find the answer... Do I have to create a metadata.xml file or something similar ? Thanks in advance for your answers !! To create "views" for your component, you have to create some xml files. Inside the templates folder in the frontend part of your component