src/tools/clippy/tests/ui/floating_point_mul_add.stderr

   1 error: multiply and add expressions can be calculated more efficiently and accurately
   2   --> $DIR/floating_point_mul_add.rs:21:13
   3    |
   4 LL |     let _ = a * b + c;
   5    |             ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
   6    |
   7    = note: `-D clippy::suboptimal-flops` implied by `-D warnings`
   8
   9 error: multiply and add expressions can be calculated more efficiently and accurately
  10   --> $DIR/floating_point_mul_add.rs:22:13
  11    |
  12 LL |     let _ = a * b - c;
  13    |             ^^^^^^^^^ help: consider using: `a.mul_add(b, -c)`
  14
  15 error: multiply and add expressions can be calculated more efficiently and accurately
  16   --> $DIR/floating_point_mul_add.rs:23:13
  17    |
  18 LL |     let _ = c + a * b;
  19    |             ^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
  20
  21 error: multiply and add expressions can be calculated more efficiently and accurately
  22   --> $DIR/floating_point_mul_add.rs:24:13
  23    |
  24 LL |     let _ = c - a * b;
  25    |             ^^^^^^^^^ help: consider using: `a.mul_add(-b, c)`
  26
  27 error: multiply and add expressions can be calculated more efficiently and accurately
  28   --> $DIR/floating_point_mul_add.rs:25:13
  29    |
  30 LL |     let _ = a + 2.0 * 4.0;
  31    |             ^^^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4.0, a)`
  32
  33 error: multiply and add expressions can be calculated more efficiently and accurately
  34   --> $DIR/floating_point_mul_add.rs:26:13
  35    |
  36 LL |     let _ = a + 2. * 4.;
  37    |             ^^^^^^^^^^^ help: consider using: `2.0f64.mul_add(4., a)`
  38
  39 error: multiply and add expressions can be calculated more efficiently and accurately
  40   --> $DIR/floating_point_mul_add.rs:28:13
  41    |
  42 LL |     let _ = (a * b) + c;
  43    |             ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
  44
  45 error: multiply and add expressions can be calculated more efficiently and accurately
  46   --> $DIR/floating_point_mul_add.rs:29:13
  47    |
  48 LL |     let _ = c + (a * b);
  49    |             ^^^^^^^^^^^ help: consider using: `a.mul_add(b, c)`
  50
  51 error: multiply and add expressions can be calculated more efficiently and accurately
  52   --> $DIR/floating_point_mul_add.rs:30:13
  53    |
  54 LL |     let _ = a * b * c + d;
  55    |             ^^^^^^^^^^^^^ help: consider using: `(a * b).mul_add(c, d)`
  56
  57 error: multiply and add expressions can be calculated more efficiently and accurately
  58   --> $DIR/floating_point_mul_add.rs:32:13
  59    |
  60 LL |     let _ = a.mul_add(b, c) * a.mul_add(b, c) + a.mul_add(b, c) + c;
  61    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `a.mul_add(b, c).mul_add(a.mul_add(b, c), a.mul_add(b, c))`
  62
  63 error: multiply and add expressions can be calculated more efficiently and accurately
  64   --> $DIR/floating_point_mul_add.rs:33:13
  65    |
  66 LL |     let _ = 1234.567_f64 * 45.67834_f64 + 0.0004_f64;
  67    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `1234.567_f64.mul_add(45.67834_f64, 0.0004_f64)`
  68
  69 error: multiply and add expressions can be calculated more efficiently and accurately
  70   --> $DIR/floating_point_mul_add.rs:35:13
  71    |
  72 LL |     let _ = (a * a + b).sqrt();
  73    |             ^^^^^^^^^^^ help: consider using: `a.mul_add(a, b)`
  74
  75 error: aborting due to 12 previous errors
  76