Add oom lang-item implementation for example

ZackPierce · ZackPierce · commit 6f3c6fd2b743 · 2018-04-30T10:08:04.000-07:00
diff --git a/example/src/lib.rs b/example/src/lib.rs
@@ -25,6 +25,15 @@ extern "C" fn panic_fmt(_args: ::core::fmt::Arguments, _file: &'static str, _lin
     }
 }
 
+// Need to provide a tiny `oom` lang-item implementation for
+// `#![no_std]`.
+#[lang = "oom"]
+extern "C" fn oom() -> ! {
+    unsafe {
+        ::core::intrinsics::abort();
+    }
+}
+
 // Now, use the allocator via `alloc` types! ///////////////////////////////////
 
 use alloc::boxed::Box;

Original file line number	Diff line number	Diff line change
`@@ -25,6 +25,15 @@ extern "C" fn panic_fmt(_args: ::core::fmt::Arguments, _file: &'static str, _lin`
`25`	`25`	`}`
`26`	`26`	`}`
`27`	`27`
	`28`	+// Need to provide a tiny `oom` lang-item implementation for
	`29`	+// `#![no_std]`.
	`30`	`+#[lang = "oom"]`
	`31`	`+extern "C" fn oom() -> ! {`
	`32`	`+ unsafe {`
	`33`	`+ ::core::intrinsics::abort();`
	`34`	`+ }`
	`35`	`+}`
	`36`	`+`
`28`	`37`	// Now, use the allocator via `alloc` types! ///////////////////////////////////
`29`	`38`
`30`	`39`	`use alloc::boxed::Box;`