20 lines
381 B
Rust
20 lines
381 B
Rust
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use std;
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import std::vec;
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import std::str;
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native "cdecl" mod libc = "" {
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fn my_strlen(str: *u8) -> uint = "strlen";
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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(_args: [str]) {
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let len = strlen("Rust");
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assert(len == 4u);
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}
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