reference question

[focusdoit]

I found, a statement, int &a = 1; the statement can be built in QT Creator, mingw_64. while on Programiz: Learn to Code for Free[^] Got,

gcc /tmp/BlXEG8NqhU.c -lm
/tmp/BlXEG8NqhU.c: In function 'main':
/tmp/BlXEG8NqhU.c:6:15: error: expected identifier or '(' before '&' token
6 | const int &a = 2;

so the int &a = 1; is that right? a is a bias name of "1" in rodata?

[k5054]

I suspect that whatever QT Creator is doing is somehow creating a const reference . e.g.

int &a = 1; // fails to compile
const int &b = 2; // compiles fine

Consider what int &a = 1 means: I.E. create a reference to the integer 1. If that were to compile successfully then consider

int &a = 1;
a = 2;
std::cout << 1 + 1 << '\n';

By the rules of C++, at least as I understand them, that should print 4, since you've changed the value of 1 to 2 at the assignment statement.

Keep Calm and Carry On

[Lost User]

You are trying to use a C++ construct in a C-language program.