// Sign mask for the flags field. A value of zero in this bit indicates a // positive Decimal value, and a value of one in this bit indicates a // negative Decimal value. pubconst SIGN_MASK: u32 = 0x8000_0000; pubconst UNSIGN_MASK: u32 = 0x4FFF_FFFF;
// Scale mask for the flags field. This byte in the flags field contains // the power of 10 to divide the Decimal value by. The scale byte must // contain a value between 0 and 28 inclusive. pubconst SCALE_MASK: u32 = 0x00FF_0000; pubconst U8_MASK: u32 = 0x0000_00FF; pubconst U32_MASK: u64 = u32::MAX as _;
// Number of bits scale is shifted by. pubconst SCALE_SHIFT: u32 = 16; // Number of bits sign is shifted by. pubconst SIGN_SHIFT: u32 = 31;
// The maximum string buffer size used for serialization purposes. 31 is optimal, however we align // to the byte boundary for simplicity. pubconst MAX_STR_BUFFER_SIZE: usize = 32;
// The maximum supported precision pubconst MAX_PRECISION: u8 = 28; #[cfg(not(feature = "legacy-ops"))] // u8 to i32 is infallible, therefore, this cast will never overflow pubconst MAX_PRECISION_I32: i32 = MAX_PRECISION as _; // u8 to u32 is infallible, therefore, this cast will never overflow pubconst MAX_PRECISION_U32: u32 = MAX_PRECISION as _; // 79,228,162,514,264,337,593,543,950,335 pubconst MAX_I128_REPR: i128 = 0x0000_0000_FFFF_FFFF_FFFF_FFFF_FFFF_FFFF;
// Fast access for 10^n where n is 0-9 pubconst POWERS_10: [u32; 10] = [ 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000,
]; // Fast access for 10^n where n is 1-19 pubconst BIG_POWERS_10: [u64; 19] = [ 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000, 10000000000, 100000000000, 1000000000000, 10000000000000, 100000000000000, 1000000000000000, 10000000000000000, 100000000000000000, 1000000000000000000, 10000000000000000000,
];
#[cfg(not(feature = "legacy-ops"))] // The maximum power of 10 that a 32 bit integer can store pubconst MAX_I32_SCALE: i32 = 9; #[cfg(not(feature = "legacy-ops"))] // The maximum power of 10 that a 64 bit integer can store pubconst MAX_I64_SCALE: u32 = 19; #[cfg(not(feature = "legacy-ops"))] pubconst U32_MAX: u64 = u32::MAX as u64;
// Determines potential overflow for 128 bit operations pubconst OVERFLOW_U96: u128 = 1u128 << 96; pubconst WILL_OVERFLOW_U64: u64 = u64::MAX / 10 - u8::MAX as u64; pubconst BYTES_TO_OVERFLOW_U64: usize = 18; // We can probably get away with less
Messung V0.5 in Prozent
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