Crate checked_int_cast [−] [src]
Conversions between integer types that check for overflow and underflow
The functions that this module exposes attempt to cast from one primitive
integer type to another, returning None
on overflow or underflow.
Examples
use checked_int_cast::CheckedIntCast; // Returns None if usize has 32 or fewer bits (2u64 << 33).as_usize_checked(); // Successful cast assert_eq!(127u8.as_i8_checked(), Some(127i8)); // Overflow assert_eq!(255u8.as_i8_checked(), None); // Underflow assert_eq!((-1i8).as_u32_checked(), None);
Traits
CheckedIntCast |
This trait allows a value to be cast to the various primitive integer types.
If the conversion overflows or underflows, the functions return |