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Improve -preview=safer changelog entry (#17490)

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Nick Treleaven 2024-12-08 07:54:18 +00:00 • committed by GitHub
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@ -1,3 +1,22 @@
This adds `-preview=safer` which enables safety checking on un-attributed functions.
Add `-preview=safer` switch for safety checking on unattributed functions
All the checks currently enabled in `@safe` code, that are easily fixed (as in
the fix is constrained to the function), will be enabled in `-preview=safer` code.
Code not easily fixed, such as calls to `@system` or unattributed functions, will
be allowed as before.
---
void f();
@system void g();
void main()
{
int* p;
p++; // Error, pointer arithmetic
f(); // allowed
g(); // allowed
}
---
For more information, see: [safer.md](https://github.com/WalterBright/documents/blob/38f0a846726b571f8108f6e63e5e217b91421c86/safer.md)