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For WASM, alloc rounds UP when dividing size by page size. #48

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Feb 12, 2025
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For WASM, alloc rounds UP when dividing size by page size. #48

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2 changes: 1 addition & 1 deletion src/wasm.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ impl System {

unsafe impl Allocator for System {
fn alloc(&self, size: usize) -> (*mut u8, usize, u32) {
let pages = size / self.page_size();
let pages = size.div_ceil(self.page_size());
let prev = wasm::memory_grow(0, pages);
if prev == usize::max_value() {
return (ptr::null_mut(), 0, 0);
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