3 use core::convert::TryFrom;
4 use core::num::TryFromIntError;
7 const FROM: i64 = i64::from(1i32);
8 assert_eq!(FROM, 1i64);
11 const FROM_F64: f64 = f64::from(42u8);
12 assert_eq!(FROM_F64, 42f64);
15 const U8_FROM_U16: Result<u8, TryFromIntError> = u8::try_from(1u16);
16 assert_eq!(U8_FROM_U16, Ok(1u8));
19 const I8_FROM_I16: Result<i8, TryFromIntError> = i8::try_from(1i16);
20 assert_eq!(I8_FROM_I16, Ok(1i8));
23 const I16_FROM_U16: Result<i16, TryFromIntError> = i16::try_from(1u16);
24 assert_eq!(I16_FROM_U16, Ok(1i16));