#57563 | new meta tracking issue

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Tracking issue for rust-lang/rfcs#911.

This issue has been closed in favor of more targeted issues:

• Locals, assignments, destructuring: Tracking issue for RFC 2341, Allow locals and destructuring in const fn #48821
• Integration with patterns: Tracking issue for const fn integration with pattern matching #57240
• Floating points: Tracking issue for #![feature(const_fn_floating_point_arithmetic)] #57241
• Panics: Tracking issue for RFC 2345, "Allow panicking in constants" (const_panic) #51999
• Loops: Tracking issue for RFC 2344, "Allow loop in constant evaluation" #52000
• Control flow: Tracking issue for RFC 2342, "Allow if and match in constants" #49146
• Comparing raw pointers: Tracking issue for comparing raw pointers in constants #53020
• Dereferencing raw pointers: [tracking issue] dereferencing raw pointers inside constants (const_raw_ptr_deref) #51911
• Raw pointer to usize casts: [tracking issue] raw ptr to usize cast inside constants #51910
• Union field accesses: [tracking issue] union field access inside const fn #51909
• Warnings on long running evaluations: [tracking issue] warnings on long running constant evaluations #49980
• Constant propagation not causing errors: Tracking issue for constant prop not causing add'l errors (RFC #1229) #28238
• &mut T references and borrows: Tracking issue for &mut T in const contexts (const_mut_refs) #57349

Things to be done before stabilizing:

• Reach final decision :P
• const unsafe fn declaration order unsafe const fn declaration order #29107
• write docs

CTFE = https://en.wikipedia.org/wiki/Compile_time_function_execution