about summary refs log tree commit diff
path: root/src/docs/float_cmp_const.txt
diff options
context:
space:
mode:
authorbors <bors@rust-lang.org>2022-11-22 17:09:06 +0000
committerbors <bors@rust-lang.org>2022-11-22 17:09:06 +0000
commitb33afd61edfb690ace17d0672b367e44758c1bef (patch)
tree4b806322d7fb1463672319546e1aadc3e2a0b5cc /src/docs/float_cmp_const.txt
parent9e093072457d9cafe8a7259992d1a05d179e4757 (diff)
parente95d40980b3044a6a9cad1b5e72eb57390790d18 (diff)
Auto merge of #104688 - flip1995:clippyup, r=Manishearth,flip1995
Update Clippy

r? `@Manishearth`

Sorry for taking so long. There were so many blockers and so little time. This situation should be mitigated with #104007 in the future.
Diffstat (limited to 'src/docs/float_cmp_const.txt')
-rw-r--r--src/docs/float_cmp_const.txt26
1 files changed, 0 insertions, 26 deletions
diff --git a/src/docs/float_cmp_const.txt b/src/docs/float_cmp_const.txt
deleted file mode 100644
index 9208feaacd8..00000000000
--- a/src/docs/float_cmp_const.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-### What it does
-Checks for (in-)equality comparisons on floating-point
-value and constant, except in functions called `*eq*` (which probably
-implement equality for a type involving floats).
-
-### Why is this bad?
-Floating point calculations are usually imprecise, so
-asking if two values are *exactly* equal is asking for trouble. For a good
-guide on what to do, see [the floating point
-guide](http://www.floating-point-gui.de/errors/comparison).
-
-### Example
-```
-let x: f64 = 1.0;
-const ONE: f64 = 1.00;
-
-if x == ONE { } // where both are floats
-```
-
-Use instead:
-```
-let error_margin = f64::EPSILON; // Use an epsilon for comparison
-// Or, if Rust <= 1.42, use `std::f64::EPSILON` constant instead.
-// let error_margin = std::f64::EPSILON;
-if (x - ONE).abs() < error_margin { }
-```
\ No newline at end of file