Codectionary / Developer documentation / C++

C++ pass by value

C++ reference for c++ pass by value.

Syntax

void increment(int value) {
  ++value; // caller is unchanged
}

Examples

C++ pass by value example

A focused example you can adapt while practising.

void increment(int value) {
  ++value; // caller is unchanged
}

Best practices

  • Start with the smallest working example, then adapt it to your project.
  • Use the language’s standard library and idioms before introducing extra dependencies.

At a glance

Purpose
Systems and general-purpose software
File extension
.cpp · .hpp
Runs in
Compiled native applications
Usually used with
Compiler and standard library

Specifications & further reading

Related C++ documentation

C++ Functions & Lambdas
Functions declare a return type, name, and parameters. Lambdas are anonymous callable objects and can capture surrounding values explicitly.C++ function definitions
C++ reference for c++ function definitions.C++ const reference parameters
C++ reference for c++ const reference parameters.C++ function overloading
C++ reference for c++ function overloading.