Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
class D { public static void main(String args[]) { Integer b2=128; Integer b3=128; System.out.println(b2==b3); } } Output: false class D { public static … Read more
pass-by-reference
What is the use of “ref” for reference-type variables in C#?
I understand that if I pass a value-type (int, struct, etc.) as a parameter (without the ref keyword), a copy of that variable … Read more
Is it better in C++ to pass by value or pass by constant reference?
Is it better in C++ to pass by value or pass by constant reference? I am wondering which is better practice. I realize … Read more
Passing by reference in C
If C does not support passing a variable by reference, why does this work? #include <stdio.h> void f(int *j) { (*j)++; } int … Read more
Are there benefits of passing by pointer over passing by reference in C++?
What are the benefits of passing by pointer over passing by reference in C++? Lately, I have seen a number of examples that … Read more
How to pass objects to functions in C++?
I am new to C++ programming, but I have experience in Java. I need guidance on how to pass objects to functions in … Read more
Is Ruby pass by reference or by value?
@user.update_languages(params[:language][:language1], params[:language][:language2], params[:language][:language3]) lang_errors = @user.errors logger.debug “——————–LANG_ERRORS———-101————-” + lang_errors.full_messages.inspect if params[:user] @user.state = params[:user][:state] success = success & @user.save end logger.debug “——————–LANG_ERRORS————-102———-” … Read more
Passing properties by reference in C#
I’m trying to do do the following: GetString( inputString, ref Client.WorkPhone) private void GetString(string inValue, ref string outValue) { if (!string.IsNullOrEmpty(inValue)) { outValue … Read more
Are PHP Variables passed by value or by reference?
Are PHP variables passed by value or by reference? 16 Answers 16
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
1) When an array is passed as an argument to a method or function, is it passed by reference, or by value? 2) … Read more