Version bump (minor): New feature `no_std`. (https://github.com/notflan/stackalloc-rs/pull/1)

Removed unwind protection test for `no_std`: It will always cause an abort, this is expected.

Fortune for stackalloc's current commit: Blessing − 吉

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "stackalloc"
-version = "1.1.2"
+version = "1.2.0"
 homepage = "https://git.flanchan.moe/flanchan/stackalloc-rs"
 repository = "https://github.com/notflan/stackalloc-rs"
 keywords = ["alloca", "stack", "stack-allocation", "safe"]

README.md

@@ -11,6 +11,9 @@ However, it is still possible to cause a stack overflow by allocating too much m
 # Requirements
 The crate works on stable or nightly Rust, but a C99-compliant compiler is required to build.
 
+# Features
+ * `no_std` - Enabled `no_std` support on nightly toolchains.
+
 # Examples
 Allocating a byte buffer on the stack.
 ```rust

src/lib.rs

@@ -91,7 +91,9 @@
 
 
 #![cfg_attr(all(feature = "no_std", not(test)), no_std)]
-#![cfg_attr(all(feature = "no_std"), feature(core_intrinsics))]
+#![cfg_attr(all(feature = "no_std", not(feature="no_unwind_protection")), feature(core_intrinsics))]
+
+// NOTE: This feature `no_unwind_protection` doesn't actually exist at the moment; since a binary crate built with #![no_std] will not be using a stable compiler toolchain. It was just for testing.
 
 #[cfg(all(nightly, test))] extern crate test;
 
@@ -111,7 +113,12 @@ use core::{
     ptr,
 };
 
-pub mod avec; pub use avec::AVec;
+
+#[cfg(not(feature = "no_std"))]
+pub mod avec;
+#[cfg(not(feature = "no_std"))]
+pub use avec::AVec;
+
 mod ffi;
 
 /// Allocate a runtime length uninitialised byte buffer on the stack, call `callback` with this buffer, and then deallocate the buffer.
@@ -206,7 +213,14 @@ where F: FnOnce(&mut [MaybeUninit<u8>]) -> T
 
 
 
-#[cfg(feature = "no_std")]
+
+#[cfg(all(feature = "no_std", feature = "no_unwind_protection"))] 
+unsafe fn catch_unwind<R, F: FnOnce() -> R>(f: F) -> Result<R, ()> {
+    // Catching unwinds disabled for this build for now since it requires core intrinsics.
+    Ok(f())
+}
+
+#[cfg(all(feature = "no_std", not(feature = "no_unwind_protection")))]
 unsafe fn catch_unwind<R, F: FnOnce() -> R>(f: F) -> Result<R, ()>{
     
     union Data<F, R> {

src/tests.rs

@@ -32,6 +32,7 @@ fn exact_size_iter()
     }), result);
 }
 
+#[cfg(all(nightly, not(feature="no_std")))] // XXX: process will abort on no_std. This is expected, but won't "pass" this test.
 #[test]
 #[should_panic]
 fn unwinding_over_boundary()