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Rollup merge of #75954 - ArekPiekarz:unstable_book_ffi_tracking_issues, r=steveklabnik 

Unstable Book: add links to tracking issues for FFI features
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Dylan DPC 2020-09-05 16:28:20 +02:00 committed by GitHub
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5
src/doc/unstable-book/src/language-features/ffi-const.md
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@ -1,5 +1,9 @@
# `ffi_const`
The tracking issue for this feature is: [#58328]
------
The `#[ffi_const]` attribute applies clang's `const` attribute to foreign
functions declarations.
@ -42,6 +46,7 @@ implemented in this way on all of them. It is therefore also worth verifying
that the semantics of the C toolchain used to compile the binary being linked
against are compatible with those of the `#[ffi_const]`.
[#58328]: https://github.com/rust-lang/rust/issues/58328
[ARM C/C++ compiler]: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0491c/Cacgigch.html
[GCC]: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-const-function-attribute
[IBM ILE C/C++]: https://www.ibm.com/support/knowledgecenter/fr/ssw_ibm_i_71/rzarg/fn_attrib_const.htm

5
src/doc/unstable-book/src/language-features/ffi-pure.md
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@ -1,5 +1,9 @@
# `ffi_pure`
The tracking issue for this feature is: [#58329]
------
The `#[ffi_pure]` attribute applies clang's `pure` attribute to foreign
functions declarations.
@ -46,6 +50,7 @@ that the semantics of the C toolchain used to compile the binary being linked
against are compatible with those of the `#[ffi_pure]`.
[#58329]: https://github.com/rust-lang/rust/issues/58329
[ARM C/C++ compiler]: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0491c/Cacigdac.html
[GCC]: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-pure-function-attribute
[IBM ILE C/C++]: https://www.ibm.com/support/knowledgecenter/fr/ssw_ibm_i_71/rzarg/fn_attrib_pure.htm