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https://github.com/rust-lang/rust-clippy
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83 lines
3.4 KiB
Text
83 lines
3.4 KiB
Text
error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:20:13
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LL | let _ = a * b + c;
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| ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
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= note: `-D clippy::suboptimal-flops` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::suboptimal_flops)]`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:21:13
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LL | let _ = a * b - c;
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| ^^^^^^^^^ help: consider using: `a.mul_add(b, -c)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:22:13
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LL | let _ = c + a * b;
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| ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:23:13
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LL | let _ = c - a * b;
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| ^^^^^^^^^ help: consider using: `a.mul_add(-b, c)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:24:13
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LL | let _ = a + 2.0 * 4.0;
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| ^^^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4.0, a)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:25:13
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LL | let _ = a + 2. * 4.;
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| ^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4., a)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:27:13
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LL | let _ = (a * b) + c;
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| ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:28:13
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LL | let _ = c + (a * b);
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| ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:29:13
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LL | let _ = a * b * c + d;
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| ^^^^^^^^^^^^^ help: consider using: `(a * b).mul_add(c, d)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:31:13
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LL | let _ = a.mul_add(b, c) * a.mul_add(b, c) + a.mul_add(b, c) + c;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `a.mul_add(b, c).mul_add(a.mul_add(b, c), a.mul_add(b, c))`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:32:13
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LL | let _ = 1234.567_f64 * 45.67834_f64 + 0.0004_f64;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1234.567_f64.mul_add(45.67834_f64, 0.0004_f64)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:34:13
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LL | let _ = (a * a + b).sqrt();
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| ^^^^^^^^^^^ help: consider using: `a.mul_add(a, b)`
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error: multiply and add expressions can be calculated more efficiently and accurately
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--> $DIR/floating_point_mul_add.rs:37:13
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LL | let _ = a - (b * u as f64);
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| ^^^^^^^^^^^^^^^^^^ help: consider using: `b.mul_add(-(u as f64), a)`
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error: aborting due to 13 previous errors
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