Auto merge of #122393 - a1phyr:specialize_read_buf_exact, r=joboet

Specialize many implementations of `Read::read_buf_exact`

This makes all implementations of `Read` that have a specialized `read_exact` implementation also have one for `read_buf_exact`.

1 files changed, 10 insertions, 0 deletions

diff --git a/library/std/src/io/stdio.rs b/library/std/src/io/stdio.rs
index 8f60b3b1535..73fa7cbc3fe 100644
--- a/library/std/src/io/stdio.rs
+++ b/library/std/src/io/stdio.rs
@@ -451,6 +451,9 @@ impl Read for Stdin {
     fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
         self.lock().read_exact(buf)
     }
+    fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> io::Result<()> {
+        self.lock().read_buf_exact(cursor)
+    }
 }
 
 #[stable(feature = "read_shared_stdin", since = "1.78.0")]
@@ -477,6 +480,9 @@ impl Read for &Stdin {
     fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
         self.lock().read_exact(buf)
     }
+    fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> io::Result<()> {
+        self.lock().read_buf_exact(cursor)
+    }
 }
 
 // only used by platform-dependent io::copy specializations, i.e. unused on some platforms
@@ -517,6 +523,10 @@ impl Read for StdinLock<'_> {
     fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
         self.inner.read_exact(buf)
     }
+
+    fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> io::Result<()> {
+        self.inner.read_buf_exact(cursor)
+    }
 }
 
 impl SpecReadByte for StdinLock<'_> {