Error code E0787
An unsupported naked function definition.
Erroneous code example:
#![allow(unused)] #![feature(naked_functions)] fn main() { #[naked] pub extern "C" fn f() -> u32 { 42 } }
The naked function must be defined using a single naked_asm! assembly block.
The execution must never fall through past the end of the assembly
code, so it must either return or diverge. The asm block can also
use att_syntax and raw options, but others options are not allowed.
The asm block must not contain any operands other than const and
sym.
Additional information
For more information, please see RFC 2972.