23 lines
390 B
Rust
23 lines
390 B
Rust
use std;
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import vec;
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import str;
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#[nolink]
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#[abi = "cdecl"]
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native mod libc {
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#[link_name = "strlen"]
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fn my_strlen(str: *u8) -> uint;
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}
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fn strlen(str: str) -> uint unsafe {
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// C string is terminated with a zero
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let bytes = str::bytes(str) + [0u8];
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ret libc::my_strlen(vec::unsafe::to_ptr(bytes));
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}
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fn main() {
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let len = strlen("Rust");
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assert(len == 4u);
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}
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