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-rw-r--r--docs/user/features.md14
1 files changed, 14 insertions, 0 deletions
diff --git a/docs/user/features.md b/docs/user/features.md
index eb81cba26..0ce8f577b 100644
--- a/docs/user/features.md
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@@ -166,6 +166,20 @@ impl Foo for S {
166} 166}
167``` 167```
168 168
169- Apply [De Morgan's law](https://en.wikipedia.org/wiki/De_Morgan%27s_laws)
170
171```rust
172// before:
173fn example(x: bool) -> bool {
174 !x || !x
175}
176
177// after:
178fn example(x: bool) -> bool {
179 !(x && x)
180}
181```
182
169- Import path 183- Import path
170 184
171```rust 185```rust