53 lines
991 B
Rust
53 lines
991 B
Rust
//ignore-msvc
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fn make_vec() -> Vec<u8> {
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let mut v = Vec::with_capacity(4);
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v.push(1);
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v.push(2);
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v
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}
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fn make_vec_macro() -> Vec<u8> {
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vec![1, 2]
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}
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fn make_vec_macro_repeat() -> Vec<u8> {
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vec![42; 5]
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}
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fn make_vec_macro_repeat_zeroed() -> Vec<u8> {
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vec![0; 7]
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}
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fn vec_into_iter() -> u8 {
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vec![1, 2, 3, 4]
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.into_iter()
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.map(|x| x * x)
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.fold(0, |x, y| x + y)
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}
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fn vec_into_iter_zst() -> usize {
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vec![[0u64; 0], [0u64; 0]]
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.into_iter()
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.map(|x| x.len())
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.sum()
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}
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fn vec_reallocate() -> Vec<u8> {
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let mut v = vec![1, 2];
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v.push(3);
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v.push(4);
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v.push(5);
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v
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}
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fn main() {
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assert_eq!(vec_reallocate().len(), 5);
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assert_eq!(vec_into_iter(), 30);
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assert_eq!(vec_into_iter_zst(), 0);
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assert_eq!(make_vec().capacity(), 4);
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assert_eq!(make_vec_macro(), [1, 2]);
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assert_eq!(make_vec_macro_repeat(), [42; 5]);
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assert_eq!(make_vec_macro_repeat_zeroed(), [0; 7]);
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}
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