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Specify that bool is compatible with the _Bool C type. #954

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Specify that bool is compatible with the _Bool C type. #954

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a034e45
add cbool rfc
mahkoh Mar 8, 2015
c95bba1
fixup
mahkoh Mar 14, 2015
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29 changes: 29 additions & 0 deletions text/0000-cbool.md
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- Feature Name: cbool
- Start Date: Mon Mar 9 00:16:53 CET 2015
- RFC PR: (leave this empty)
- Rust Issue: (leave this empty)

# Summary

Specify that `bool` is compatible with the `_Bool` C type.

# Motivation

You cannot safely call ffi functions with boolean arguments without a compatible
type.

# Detailed design

Specify that `bool` is compatible with the `_Bool` C type.

# Drawbacks

None.

# Alternatives

Define `_Bool` as a platform dependent integer type. This is unsafe because the behavior is supposedly undefined if you pass a value other than 0 or 1 to such a function.

# Unresolved questions

None.