06e9170f30
cargo test will test examples that have a "main.rs", but in this case, the example requires manual compilation as a wasm module, and doesn't build as a standalone program. Rename it to "demo.rs".
12 lines
208 B
Rust
12 lines
208 B
Rust
extern "C" {
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fn callback(s: *const u8, s_len: u32) -> u32;
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}
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#[no_mangle]
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pub extern "C" fn test() {
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let msg = "Hello, world!";
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unsafe {
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callback(msg.as_ptr(), msg.len() as u32);
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}
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}
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