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Mask debug prints no-std mode

This commit is contained in:
Josh Stone 2018-03-11 01:36:17 -08:00
parent d195eafbe2
commit 6d7bbb1b53
1 changed files with 17 additions and 4 deletions
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21
src/cast.rs
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@ -691,6 +691,19 @@ fn cast_to_unsigned_int_checks_overflow() {
assert_eq!(None, cast::<f64, u64>(small_f));
}
#[cfg(all(test, feature = "std"))]
fn dbg(args: ::core::fmt::Arguments) {
println!("{}", args);
}
#[cfg(all(test, not(feature = "std")))]
fn dbg(_: ::core::fmt::Arguments) {}
// Rust 1.8 doesn't handle cfg on macros correctly
// #[cfg(test)]
#[allow(unused)]
macro_rules! dbg { ($($tok:tt)*) => { dbg(format_args!($($tok)*)) } }
#[test]
fn cast_float_to_int_edge_cases() {
use core::mem::transmute;
@ -720,7 +733,7 @@ fn cast_float_to_int_edge_cases() {
macro_rules! test_edge {
($f:ident -> $($t:ident)+) => { $({
println!("testing cast edge cases for {} -> {}", stringify!($f), stringify!($t));
dbg!("testing cast edge cases for {} -> {}", stringify!($f), stringify!($t));
let small = if $t::MIN == 0 || size_of::<$t>() < size_of::<$f>() {
$t::MIN as $f - 1.0
@ -728,7 +741,7 @@ fn cast_float_to_int_edge_cases() {
($t::MIN as $f).raw_offset(1).floor()
};
let fmin = small.raw_offset(-1);
println!(" testing min {}\n\tvs. {:.16}\n\tand {:.16}", $t::MIN, fmin, small);
dbg!(" testing min {}\n\tvs. {:.16}\n\tand {:.16}", $t::MIN, fmin, small);
assert_eq!(Some($t::MIN), cast::<$f, $t>($t::MIN as $f));
assert_eq!(Some($t::MIN), cast::<$f, $t>(fmin));
assert_eq!(None, cast::<$f, $t>(small));
@ -742,12 +755,12 @@ fn cast_float_to_int_edge_cases() {
(max, large)
};
let fmax = large.raw_offset(-1);
println!(" testing max {}\n\tvs. {:.16}\n\tand {:.16}", max, fmax, large);
dbg!(" testing max {}\n\tvs. {:.16}\n\tand {:.16}", max, fmax, large);
assert_eq!(Some(max), cast::<$f, $t>(max as $f));
assert_eq!(Some(max), cast::<$f, $t>(fmax));
assert_eq!(None, cast::<$f, $t>(large));
println!(" testing non-finite values");
dbg!(" testing non-finite values");
assert_eq!(None, cast::<$f, $t>($f::NAN));
assert_eq!(None, cast::<$f, $t>($f::INFINITY));
assert_eq!(None, cast::<$f, $t>($f::NEG_INFINITY));