- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Why doesn't C++ support functions returning arrays
Let us consider this following program,
#include <iostream> using namespace std; int* Array() { int a[100]; a[0] = 7; a[1] = 6; a[2] = 4; a[3] = 3; return a; } int main() { int* p = Array(); cout << p[0] << " " << p[1]<<" "<<p[2]<<" "<<p[3]; return 0; }
In this program,We get warning as,
Output
In function 'int* Array()': warning: address of local variable 'a' returned [-Wreturn-local-addr] int a[100];
We return the address of local variable but this is not possible as local variable may not exist in memory after the end of function call. So, C++ doesn’t support function returning arrays.
Advertisements
To Continue Learning Please Login
Login with Google