23 lines
368 B
Rust
23 lines
368 B
Rust
use std::str;
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struct StringBuffer {
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s: ~str
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}
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impl StringBuffer {
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pub fn append(&mut self, v: &str) {
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self.s.push_str(v);
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}
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}
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fn to_str(sb: StringBuffer) -> ~str {
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sb.s
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}
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fn main() {
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let mut sb = StringBuffer {s: ~""};
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sb.append("Hello, ");
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sb.append("World!");
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let str = to_str(sb);
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assert_eq!(str, ~"Hello, World!");
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} |