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[rust.git] / tests / ui / float_cmp.rs

diff --git a/tests/ui/float_cmp.rs b/tests/ui/float_cmp.rs
index 207c1bcbbc676da7857dfd211037129e5cd33f90..9fa0e5f5c079b5e8bf2b8a0e3f2929f87b45d809 100644 (file)
--- a/tests/ui/float_cmp.rs
+++ b/tests/ui/float_cmp.rs
@@ -1,5 +1,11 @@
 #![warn(clippy::float_cmp)]
-#![allow(unused, clippy::no_effect, clippy::unnecessary_operation, clippy::cast_lossless)]
+#![allow(
+    unused,
+    clippy::no_effect,
+    clippy::unnecessary_operation,
+    clippy::cast_lossless,
+    clippy::many_single_char_names
+)]
 
 use std::ops::Add;
 
@@ -45,8 +51,8 @@ fn eq(&self, o: &X) -> bool {
 
 fn main() {
     ZERO == 0f32; //no error, comparison with zero is ok
-    1.0f32 != ::std::f32::INFINITY; // also comparison with infinity
-    1.0f32 != ::std::f32::NEG_INFINITY; // and negative infinity
+    1.0f32 != f32::INFINITY; // also comparison with infinity
+    1.0f32 != f32::NEG_INFINITY; // and negative infinity
     ZERO == 0.0; //no error, comparison with zero is ok
     ZERO + ZERO != 1.0; //no error, comparison with zero is ok
 
@@ -77,6 +83,21 @@ fn main() {
 
     assert_eq!(a, b); // no errors
 
+    const ZERO_ARRAY: [f32; 2] = [0.0, 0.0];
+    const NON_ZERO_ARRAY: [f32; 2] = [0.0, 0.1];
+
+    let i = 0;
+    let j = 1;
+
+    ZERO_ARRAY[i] == NON_ZERO_ARRAY[j]; // ok, because lhs is zero regardless of i
+    NON_ZERO_ARRAY[i] == NON_ZERO_ARRAY[j];
+
+    let a1: [f32; 1] = [0.0];
+    let a2: [f32; 1] = [1.1];
+
+    a1 == a2;
+    a1[0] == a2[0];
+
     // no errors - comparing signums is ok
     let x32 = 3.21f32;
     1.23f32.signum() == x32.signum();