//ww:run-exit 255 package main; import fmt; import io; export fn main() i32 = { let buf: [64]u8; let r: (str | io.error) = fmt.bsprintf(buf[0:64], "{:2147483648}", 42i64); match (r) { case let s: str => { return 0; }; case let e: io.error => { return 1; }; }; };