From a3828579fbe916e68dc8a60d86cb309567a71845 Mon Sep 17 00:00:00 2001
From: Alice Ryhl <aliceryhl@google.com>
Date: Sun, 1 Oct 2023 20:59:46 +0200
Subject: [PATCH] fix features

---
 src/buf/buf_impl.rs | 4 +++-
 src/lib.rs          | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/buf/buf_impl.rs b/src/buf/buf_impl.rs
index 3eda3dfd0..286cdf9df 100644
--- a/src/buf/buf_impl.rs
+++ b/src/buf/buf_impl.rs
@@ -1,7 +1,9 @@
 #[cfg(feature = "std")]
 use crate::buf::{reader, Reader};
 use crate::buf::{take, Chain, Take};
-use crate::{min_u64_usize, panic_advance, panic_does_not_fit, saturating_sub_usize_u64};
+#[cfg(feature = "std")]
+use crate::{min_u64_usize, saturating_sub_usize_u64};
+use crate::{panic_advance, panic_does_not_fit};
 
 #[cfg(feature = "std")]
 use std::io::IoSlice;
diff --git a/src/lib.rs b/src/lib.rs
index 3e627f81a..ead1ae947 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -117,6 +117,7 @@ fn abort() -> ! {
 }
 
 #[inline(always)]
+#[cfg(feature = "std")]
 fn saturating_sub_usize_u64(a: usize, b: u64) -> usize {
     use core::convert::TryFrom;
     match usize::try_from(b) {
@@ -126,6 +127,7 @@ fn saturating_sub_usize_u64(a: usize, b: u64) -> usize {
 }
 
 #[inline(always)]
+#[cfg(feature = "std")]
 fn min_u64_usize(a: u64, b: usize) -> usize {
     use core::convert::TryFrom;
     match usize::try_from(a) {