Merge pull request rust-lang#196 from diwic/patch-1

Document "prevent unwinding into FFI"
dlrobertson · Jan 12, 2018 · ca9c708 · ca9c708
2 parents dcd60a2 + 512d377
commit ca9c708
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/items/functions.md b/src/items/functions.md
@@ -165,3 +165,4 @@ same type as the functions declared in an extern block.
 let fptr: extern "C" fn() -> i32 = new_i32;
 ```
 
+As non-Rust calling conventions do not support unwinding, unwinding past the end of an extern function will cause the process to abort (in LLVM, this is implemented by executing an illegal instruction).