The CI rustfmt checker uses `stable` rust, not `nightly`, but the
config options in `rustfmt.toml` only work on nightly -- on stable,
there are ignored with warnings. This means that devs running stable
get a lot of warnings and devs running nightly will accidentally format
in a way that the CI checker forbids. (specifically, using
`where_single_line`). E.g.:
```
$ cargo +stable fmt -- --check
Warning: can't set `indent_style = Block`, unstable features are only available in nightly channel.
Warning: can't set `where_single_line = true`, unstable features are only available in nightly channel.
...etc
$ cargo +nightly fmt -- --check
-where
- N: RealField,
-{
+where N: RealField {
...etc
```
Just removing the toml fixes this problem.
Previously, most dimension mismatch asserts used raw `assert!` and did
not include the mismatching dimensions in the panic message. When using
dynamic matrices, this led to somewhat-opaque panics such as:
```rust
let m1 = DMatrix::<f32>::zeros(2, 3);
let m2 = DMatrix::<f32>::zeros(5, 10);
m1 + m2 // panic: Matrix addition/subtraction dimensions mismatch.
```
This patch adds dimension information in the panic messages wherever
doing so did not add additional bounds checks, mostly by simply changing
`assert!(a == b, ...)` cases to `assert_eq!`. After:
```rust
// panic: assertion failed: `(left == right)`
// left: `(2, 3)`,
// right: `(5, 10)`: Matrix addition/subtraction dimensions mismatch.
```
Note that the `gemv` and `ger` were not updated, as they are called from
within other functions on subset matricies -- e.g., `gemv` is called
from `gemm` which is called from `mul_to` . Including dimension
information in the `gemv` panic messages would be confusing to
`mul` / `mul_to` users, because it would include dimensions of the column
vectors that `gemm` passes to `gemv` rather than of the original `mul`
arguments. A fix would be to add bounds checks to `mul_to`, but that may
have performance and redundancy implications, so is left to another
patch.
Sébastien Crozet
Philippe Renon
Michael Morgan
Michael Stevens
Frans Skarman
Andreas Longva
danielschlaugies
CGMossa
Adam Nemecek
Jenan Wise