diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/floating_point_abs.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/floating_point_abs.rs | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/floating_point_abs.rs b/src/tools/clippy/tests/ui/floating_point_abs.rs new file mode 100644 index 000000000..e4b606574 --- /dev/null +++ b/src/tools/clippy/tests/ui/floating_point_abs.rs @@ -0,0 +1,84 @@ +// run-rustfix +#![feature(const_fn_floating_point_arithmetic)] +#![warn(clippy::suboptimal_flops)] + +/// Allow suboptimal ops in constant context +pub const fn in_const_context(num: f64) -> f64 { + if num >= 0.0 { num } else { -num } +} + +struct A { + a: f64, + b: f64, +} + +fn fake_abs1(num: f64) -> f64 { + if num >= 0.0 { num } else { -num } +} + +fn fake_abs2(num: f64) -> f64 { + if 0.0 < num { num } else { -num } +} + +fn fake_abs3(a: A) -> f64 { + if a.a > 0.0 { a.a } else { -a.a } +} + +fn fake_abs4(num: f64) -> f64 { + if 0.0 >= num { -num } else { num } +} + +fn fake_abs5(a: A) -> f64 { + if a.a < 0.0 { -a.a } else { a.a } +} + +fn fake_nabs1(num: f64) -> f64 { + if num < 0.0 { num } else { -num } +} + +fn fake_nabs2(num: f64) -> f64 { + if 0.0 >= num { num } else { -num } +} + +fn fake_nabs3(a: A) -> A { + A { + a: if a.a >= 0.0 { -a.a } else { a.a }, + b: a.b, + } +} + +fn not_fake_abs1(num: f64) -> f64 { + if num > 0.0 { num } else { -num - 1f64 } +} + +fn not_fake_abs2(num: f64) -> f64 { + if num > 0.0 { num + 1.0 } else { -(num + 1.0) } +} + +fn not_fake_abs3(num1: f64, num2: f64) -> f64 { + if num1 > 0.0 { num2 } else { -num2 } +} + +fn not_fake_abs4(a: A) -> f64 { + if a.a > 0.0 { a.b } else { -a.b } +} + +fn not_fake_abs5(a: A) -> f64 { + if a.a > 0.0 { a.a } else { -a.b } +} + +fn main() { + fake_abs1(5.0); + fake_abs2(5.0); + fake_abs3(A { a: 5.0, b: 5.0 }); + fake_abs4(5.0); + fake_abs5(A { a: 5.0, b: 5.0 }); + fake_nabs1(5.0); + fake_nabs2(5.0); + fake_nabs3(A { a: 5.0, b: 5.0 }); + not_fake_abs1(5.0); + not_fake_abs2(5.0); + not_fake_abs3(5.0, 5.0); + not_fake_abs4(A { a: 5.0, b: 5.0 }); + not_fake_abs5(A { a: 5.0, b: 5.0 }); +} |