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 functions must be defined using a single inline assembly block.
The execution must never fall through past the end of the assembly
code so the block must use noreturn
option. 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.