Pass by Value
When we pass function arguments, there are two ways to do this:
- By value: the function's variable copies the parameter's value without changing the argument.
- By reference: the function's variable copies the reference of the parameter by changing the argument.
By value:
12345678910void incValue(int x) { x++; } int main() { int x = 1; incValue(x); cout << x; return 0; }
As you can see by the output, x
didn't change since we changed the copy of x
in the function incValue()
.
Everything was clear?
Thanks for your feedback!
SectionΒ 4. ChapterΒ 7
Ask AI
Ask AI
Ask anything or try one of the suggested questions to begin our chat
Suggested prompts:
Ask me questions about this topic
Summarize this chapter
Show real-world examples
Awesome!
Completion rate improved to 2.94
Pass by Value
Swipe to show menu
When we pass function arguments, there are two ways to do this:
- By value: the function's variable copies the parameter's value without changing the argument.
- By reference: the function's variable copies the reference of the parameter by changing the argument.
By value:
12345678910void incValue(int x) { x++; } int main() { int x = 1; incValue(x); cout << x; return 0; }
As you can see by the output, x
didn't change since we changed the copy of x
in the function incValue()
.
Everything was clear?
Thanks for your feedback!
SectionΒ 4. ChapterΒ 7