bendns' repos / fimg
fast image operations
Diffstat (limited to 'src/lib.rs')
-rw-r--r--src/lib.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib.rs b/src/lib.rs
index 8243b46..3b62765 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -60,6 +60,7 @@ impl Image<&[u8], 3> {
/// # Safety
///
/// UB if self's width is not a multiple of x, or self's height is not a multiple of y
+ #[must_use = "function does not modify the original image"]
pub unsafe fn repeated(&self, x: u32, y: u32) -> Image<Vec<u8>, 3> {
let mut img = Image::alloc(x, y); // could probably optimize this a ton but eh
for x in 0..(x / self.width()) {
@@ -448,6 +449,6 @@ mod tests {
#[test]
fn repeat() {
let x: Image<&[u8], 3> = Image::build(8, 8).buf(include_bytes!("../benches/3_8x8.imgbuf"));
- unsafe { x.repeated(128, 128) }; // repeat 16 times
+ let _ = unsafe { x.repeated(128, 128) }; // repeat 16 times
}
}