From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Mon, 8 Jan 2024 01:21:28 +0400 Subject: Initial vendor packages Signed-off-by: Valentin Popov --- vendor/number_prefix/examples/conversions.rs | 61 ++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 vendor/number_prefix/examples/conversions.rs (limited to 'vendor/number_prefix/examples/conversions.rs') diff --git a/vendor/number_prefix/examples/conversions.rs b/vendor/number_prefix/examples/conversions.rs new file mode 100644 index 0000000..422d116 --- /dev/null +++ b/vendor/number_prefix/examples/conversions.rs @@ -0,0 +1,61 @@ +/// This example prints out the conversions for increasingly-large numbers, to +/// showcase how the numbers change as the input gets bigger. +/// It results in this: +/// +/// ```text +/// 1000 bytes is 1.000 kB and 1000 bytes +/// 1000000 bytes is 1.000 MB and 976.562 KiB +/// 1000000000 bytes is 1.000 GB and 953.674 MiB +/// 1000000000000 bytes is 1.000 TB and 931.323 GiB +/// 1000000000000000 bytes is 1.000 PB and 909.495 TiB +/// 1000000000000000000 bytes is 1.000 EB and 888.178 PiB +/// 1000000000000000000000 bytes is 1.000 ZB and 867.362 EiB +/// 1000000000000000000000000 bytes is 1.000 YB and 847.033 ZiB +/// +/// 1024 bytes is 1.000 KiB and 1.024 kB +/// 1048576 bytes is 1.000 MiB and 1.049 MB +/// 1073741824 bytes is 1.000 GiB and 1.074 GB +/// 1099511627776 bytes is 1.000 TiB and 1.100 TB +/// 1125899906842624 bytes is 1.000 PiB and 1.126 PB +/// 1152921504606847000 bytes is 1.000 EiB and 1.153 EB +/// 1180591620717411300000 bytes is 1.000 ZiB and 1.181 ZB +/// 1208925819614629200000000 bytes is 1.000 YiB and 1.209 YB +/// ``` + +extern crate number_prefix; +use number_prefix::NumberPrefix; +use std::fmt::Display; + + +fn main() { + + // part one, decimal prefixes + let mut n = 1_f64; + for _ in 0 .. 8 { + n *= 1000_f64; + + let decimal = format_prefix(NumberPrefix::decimal(n)); + let binary = format_prefix(NumberPrefix::binary(n)); + println!("{:26} bytes is {} and {:10}", n, decimal, binary); + } + + println!(); + + // part two, binary prefixes + let mut n = 1_f64; + for _ in 0 .. 8 { + n *= 1024_f64; + + let decimal = format_prefix(NumberPrefix::decimal(n)); + let binary = format_prefix(NumberPrefix::binary(n)); + println!("{:26} bytes is {} and {:10}", n, binary, decimal); + } +} + + +fn format_prefix(np: NumberPrefix) -> String { + match np { + NumberPrefix::Prefixed(prefix, n) => format!("{:.3} {}B", n, prefix), + NumberPrefix::Standalone(bytes) => format!("{} bytes", bytes), + } +} -- cgit v1.2.3