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Add entry about `cfg!(overflow_checks)` 

Related to https://github.com/rust-lang/rust/pull/111096
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AngelicosPhosphoros 2023-05-02 19:33:43 +04:00
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src/conditional-compilation.md
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@ -222,6 +222,10 @@ This can be used to enable extra debugging code in development but not in
production. For example, it controls the behavior of the standard library's
[`debug_assert!`] macro.
### `overflow_checks`
Enabled when program compiled with overflow checks enabled, e.g. in development builds.
### `proc_macro`
Set when the crate being compiled is being compiled with the `proc_macro`