Cargo.toml

@@ -4,7 +4,7 @@ description = "Small byte-sized generic key-value map type"
 keywords = ["map", "table", "small", "key", "value"]
 repository = "https://github.com/notflan/smallmap"
 homepage= "https://git.flanchan.moe/flanchan/smallmap"
-version = "1.4.2"
+version = "1.4.1"
 authors = ["Avril <flanchan@cumallover.me>"]
 edition = "2018"
 license = "MIT"
@@ -22,12 +22,12 @@ std = []
 # TODO: maybe add an FFI feature, to allow C projects to use it? idk if that's worth it really...
 
 [dependencies]
-serde = {version = "1.0.163", default-features = false, features = ["derive", "alloc"], optional = true}
+serde = {version = "1.0.116", default-features = false, features = ["derive", "alloc"], optional = true}
 # TODO: optional smallvec feature: instead of heap-allocating the first page, it can be placed on the stack.
 
 
 [dev-dependencies]
-serde_json = "1.0.96"
+serde_json = "1.0.59"
 
 [build-dependencies]
-rustc_version = "0.4"
+rustc_version = "0.2"

src/lib.rs

@@ -28,6 +28,7 @@
 //! Generally don't use this if your key would have a lot of collisions being represents in 8 bits, otherwise it might be a faster alternative to hash-based maps. You should check yourself before sticking with this crate instead of `std`'s vectorised map implementations.
 #![cfg_attr(any(not(test), not(feature = "std")), no_std)]
 #![cfg_attr(nightly, feature(test))] 
+#![cfg_attr(nightly, feature(drain_filter))] 
 #![cfg_attr(nightly, feature(never_type))] 
 
 #[cfg(all(nightly, test))] extern crate test;
@@ -309,7 +310,19 @@ where K: Collapse
     /// Remove all empty pages from this instance.
     pub fn clean(&mut self)
     {
-	self.0.retain(|x| x.len() >= 1);
+	#[cfg(nightly)] 
+	self.0.drain_filter(|x| x.len() <1);
+	#[cfg(not(nightly))]
+	{
+	    let mut i = 0;
+	    while i != self.0.len() {
+		if self.0[i].len() <1 {
+		    self.0.remove(i);
+		} else {
+		    i += 1;
+		}
+	    }
+	}
     }
 
     /// The number of entries currently in this map