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rust-clippy/tests/ui/floating_point_mul_add.stderr
2020-02-23 22:20:34 -08:00

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error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:10:13
|
LL | let _ = a * b + c;
| ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
|
= note: `-D clippy::suboptimal-flops` implied by `-D warnings`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:11:13
|
LL | let _ = c + a * b;
| ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:12:13
|
LL | let _ = a + 2.0 * 4.0;
| ^^^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4.0, a)`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:13:13
|
LL | let _ = a + 2. * 4.;
| ^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4., a)`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:15:13
|
LL | let _ = (a * b) + c;
| ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:16:13
|
LL | let _ = c + (a * b);
| ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:17:13
|
LL | let _ = a * b * c + d;
| ^^^^^^^^^^^^^ help: consider using: `(a * b).mul_add(c, d)`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:19:13
|
LL | let _ = a.mul_add(b, c) * a.mul_add(b, c) + a.mul_add(b, c) + c;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `a.mul_add(b, c).mul_add(a.mul_add(b, c), a.mul_add(b, c))`
error: multiply and add expressions can be calculated more efficiently and accurately
--> $DIR/floating_point_mul_add.rs:20:13
|
LL | let _ = 1234.567_f64 * 45.67834_f64 + 0.0004_f64;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1234.567_f64.mul_add(45.67834_f64, 0.0004_f64)`
error: aborting due to 9 previous errors