// run-pass // ignore-emscripten no no_std executables #![feature(lang_items, start)] #![no_std] extern crate std as other; #[macro_use] extern crate alloc; use alloc::string::ToString; #[start] fn start(_argc: isize, _argv: *const *const u8) -> isize { let s = format!("{}", 1_isize); assert_eq!(s, "1".to_string()); let s = format!("test"); assert_eq!(s, "test".to_string()); let s = format!("{test}", test=3_isize); assert_eq!(s, "3".to_string()); let s = format!("hello {}", "world"); assert_eq!(s, "hello world".to_string()); 0 }