compiler-error-c2103.md

description	title	ms.date	f1_keywords	helpviewer_keywords
Learn more about: Compiler Error C2103	Compiler Error C2103	03/04/2024	C2103	C2103

Compiler Error C2103

'&' on register variable

You cannot take the address of a register.

The following sample generates C2103:

// C2103.c
int main(void)
{
    register int x = 1;
    int* ptr = &x;   // C2103
}

Note

This error applies to C code.