861556390e
Now that the internals of `format_args!` are unstable, tests that use it don't compile after pretty-printing (unless they also declare the necessary feature).
40 lines
1.4 KiB
Rust
40 lines
1.4 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(std_misc)]
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use std::num::strconv::ExponentFormat::{ExpBin, ExpDec};
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use std::num::strconv::SignificantDigits::DigMax;
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use std::num::strconv::SignFormat::{SignAll, SignNeg};
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use std::num::strconv::float_to_str_common as to_string;
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macro_rules! t {
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($a:expr, $b:expr) => { { let (r, _) = $a; assert_eq!(r, $b.to_string()); } }
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}
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pub fn main() {
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// Basic usage
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t!(to_string(1.2345678e-5f64, 10, true, SignNeg, DigMax(6), ExpDec, false),
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"1.234568e-5");
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// Hexadecimal output
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t!(to_string(7.281738281250e+01f64, 16, true, SignAll, DigMax(6), ExpBin, false),
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"+1.2345p+6");
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t!(to_string(-1.777768135071e-02f64, 16, true, SignAll, DigMax(6), ExpBin, false),
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"-1.2345p-6");
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// Some denormals
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t!(to_string(4.9406564584124654e-324f64, 10, true, SignNeg, DigMax(6), ExpBin, false),
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"1p-1074");
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t!(to_string(2.2250738585072009e-308f64, 10, true, SignNeg, DigMax(6), ExpBin, false),
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"1p-1022");
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}
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