Macro bytesmin 

bytesmin!() { /* proc-macro */ }

Bytesmin converts literals into an array of bytes of minimal size to capture the value.

Currently supports only integer literals of unbounded size.

Supported literal forms:

• Base 16 (hex), e.g. 0xff
• Base 2 (binary), e.g. 0b11111111

Leading zeroes on integer literals are discarded and not preserved. The generated byte slice is the minimal bytes required to capture the literal provided.

Decimal and octal literal forms are not supported.

To preserve leading zeros, use bytes!.

This macro is intended for small byte inputs. There is no arbitrary limit, but very large inputs may result in long compilation times. For large amounts of bytes, store the bytes in a file and use include_bytes! instead.

Examples

let bytes = bytes_lit::bytesmin!(0x1);
assert_eq!(bytes, [1]);

let bytes = bytes_lit::bytesmin!(0xfded3f55dec47250a52a8c0bb7038e72fa6ffaae33562f77cd2b629ef7fd424d);
assert_eq!(bytes, [
    253, 237, 63, 85, 222, 196, 114, 80, 165, 42, 140, 11, 183, 3, 142, 114,
    250, 111, 250, 174, 51, 86, 47, 119, 205, 43, 98, 158, 247, 253, 66, 77,
]);

let bytes = bytes_lit::bytesmin!(0x00000000dec47250a52a8c0bb7038e72fa6ffaae33562f77cd2b629ef7fd424d);
assert_eq!(bytes, [
    222, 196, 114, 80, 165, 42, 140, 11, 183, 3, 142, 114, 250, 111, 250,
    174, 51, 86, 47, 119, 205, 43, 98, 158, 247, 253, 66, 77,
]);