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Unstable Book: add links to tracking issues for FFI features #75954

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Sep 5, 2020
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Unstable Book: add links to tracking issues for FFI features #75954

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5 changes: 5 additions & 0 deletions 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.

Expand Down Expand Up @@ -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 changes: 5 additions & 0 deletions 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.

Expand Down Expand Up @@ -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