22 lines
490 B
Rust
22 lines
490 B
Rust
fn w_semi(v: [int]) -> int {
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vec::foldl(0, v) {|x,y| x+y};
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-10
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}
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fn wo_paren(v: [int]) -> int {
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// Perhaps surprising: this is parsed equivalently to w_semi()
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vec::foldl(0, v) {|x,y| x+y} - 10
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}
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fn w_paren(v: [int]) -> int {
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// Here the parentheses force interpretation as an expression:
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(vec::foldl(0, v) {|x,y| x+y}) - 10
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}
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fn main() {
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assert wo_paren([0, 1, 2, 3]) == -10;
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assert w_semi([0, 1, 2, 3]) == -10;
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assert w_paren([0, 1, 2, 3]) == -4;
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}
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