0.3.0: converge relibc to upstream 0.6.0 + Red Bear patches

src/header/float/mod.rs

@@ -1,16 +1,19 @@
-//! float.h implementation for Redox, following
-//! http://pubs.opengroup.org/onlinepubs/7908799/xsh/float.h.html
+//! `float.h` implementation.
+//!
+//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/float.h.html>.
 
 use crate::{
-    header::_fenv::{fegetround, FE_TONEAREST},
-    platform::types::*,
+    header::_fenv::{FE_TONEAREST, fegetround},
+    platform::types::c_int,
 };
 
+/// See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/float.h.html>.
 pub const FLT_RADIX: c_int = 2;
 
-#[no_mangle]
+/// See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/float.h.html>.
+#[unsafe(no_mangle)]
 pub unsafe extern "C" fn flt_rounds() -> c_int {
-    match fegetround() {
+    match unsafe { fegetround() } {
         FE_TONEAREST => 1,
         _ => -1,
     }