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C++ referencing instances created within a function's scope


C++ referencing instances created within a function's scope

By : user2183511
Date : November 16 2020, 04:01 AM
I think the issue was by ths following , I dont really understand your code. Please read How to create a Minimal, Complete and Verifiable example. Anyhow, the following is certainly wrong and likely the cause of your problem:
code :
void JFSF::addSwitchContinuous(int inputPin, int btnIndex)
{
    JFSF_PRIV::SwitchContinuousAction newBtnAction(_joystick, inputPin, btnIndex);
    _actions[_nextActionIndex++] = &newBtnAction;
}
void foo(){
    T bar;
    container[index] = &bar;
}


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Scala: Referencing functions on object instances

Scala: Referencing functions on object instances


By : govind garkoti
Date : March 29 2020, 07:55 AM
it helps some times So basically what you're asking for is a way to address a specific method on multiple instances, right? If so, it's easily solvable:
code :
trait Foo {
  def id : Int
  def attribute1( x : Double ) : Double
}

def aggregate( f : (Foo, Double) => Double, inputs : Map[Int, Double] ) = 
  foos.foldLeft(0d)( (sum, foo) => sum + f(foo, inputs(foo.id)) )

def aggregateAttribute1(inputs: Map[Int, Double]) = 
  aggregate(_.attribute1(_), inputs)
(foo, input) => foo.attribute1(input)
Javascript variable scope when dynamically referencing functions

Javascript variable scope when dynamically referencing functions


By : Chris West
Date : March 29 2020, 07:55 AM
Hope this helps I'm trying to create a function that creates a "proxy" around an object's method. This "proxy" will be used to handle web requests and then call the target method. The proxy function looks similar to this: , The following worked for me, just create a closure for member
code :
var proxy = function(c) {
  var proxy = {};
  for(var member in c) {
    !function(member){
        var args = c[member].toString().match (/function\s*\w*\s*\((.*?)\)/)[1].split (/\s*,\s*/);
        proxy[member] = function(params) {
          var methodArgs = args.map(function(argName) {
            return params[argName];
          });
          return c[member].apply(c, methodArgs);
        }
    }(member)
  }
  return proxy;
};



console.log( cProxy.sum({x: 3,y: 8})) // returns 11
console.log( cProxy.multiply({x: 3,y: 8})) //returns 24
Seeing functions available when referencing a COM library (created in VS2013) in VB6

Seeing functions available when referencing a COM library (created in VS2013) in VB6


By : user3060609
Date : March 29 2020, 07:55 AM
will help you I created a Class Library in VS2013 and added a COM Class to it and added some functions. I compiled and brought it to another computer with VB6 so it can be registered and then referenced (.tlb).
code :
  Dim comObj As Object
  Dim comObj As New Test
Referencing user-created functions in R from seperate scripts

Referencing user-created functions in R from seperate scripts


By : Tendai
Date : March 29 2020, 07:55 AM
wish of those help Creating an R package is actually super easy. The link from Alex is how I started my first package. Here's a slightly simplified version I have to give my students. (NB: full credit to Hilary Parker, the author of the original blogpost).
First install devtools and roxygen:
code :
install.packages("devtools")
library("devtools")
install.packages("roxygen2")
library("roxygen2")
setwd("/path/to/parentdirectory")
create("mypackage")
mymeanfun <- function(x){
       mean(x)
}

myfilterfun <- function(x, y){
       filter(x, y)
}
#' My Mean Function
#'
#' Takes the mean
#' @param x any default data type
#' @export
#' @examples
#' mymeanfun(c(1,2,3))
mymeanfun <- function(x){
       mean(x)
}
#' My Filter Function
#'
#' Identical to dplyr::filter
#' @param x a data.frame
#' @export
#' @importFrom dplyr filter
myfilterfun <- function(x, y){
       filter(x, y)
}
setwd(".\mypackage")
document()
install_github("yourgithubname/mypackage")
library(mypackage)
Functions created with the Function constructor are always created in the global scope

Functions created with the Function constructor are always created in the global scope


By : chetan ganurkar
Date : March 29 2020, 07:55 AM
like below fixes the issue In your example, "created in the global scope" means that tester will not have closure over x from test:
code :
function test(){
  var x = 5;
  tester = new Function("a", "b", "alert(x);"); // this will not show x
  tester(5, 10);
}
function test(){
  var x = 5;
  tester = function (a, b) {
    alert(x); // this will show x
  };
  tester(5, 10);
}
function addOne(x) {
  return compile("return " + x + " + 1");
}

function addTwo(x) {
  return compile("return " + x + " + 2");
}

function compile(str) {
  return new Function(str);
}
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