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author | Adam Carpenter <adam.carpenter@adp.com> | 2019-02-11 16:59:01 -0500 |
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committer | Adam Carpenter <adam.carpenter@adp.com> | 2019-02-11 16:59:01 -0500 |
commit | ef1bf4921ee4127d461eec03a14c9070d193345c (patch) | |
tree | ab9f4ed73fcf97656743c959ce8c9adbe2ce9924 /ownership/src | |
download | learning-rust-ef1bf4921ee4127d461eec03a14c9070d193345c.tar.xz learning-rust-ef1bf4921ee4127d461eec03a14c9070d193345c.zip |
Init.
Diffstat (limited to 'ownership/src')
-rwxr-xr-x | ownership/src/main.rs | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/ownership/src/main.rs b/ownership/src/main.rs new file mode 100755 index 0000000..1684f55 --- /dev/null +++ b/ownership/src/main.rs @@ -0,0 +1,51 @@ +fn main() { + //let words = String::from("hello there world"); + //let words = "hello there world"; + //let first = first_word(&words); + //let second = second_word(&words); + //let last = last_word(&words); + //println!("{}\n{}", first, last); + let a = [1, 2, 3, 4, 5]; + let slice = &a[1..4]; + + for each in slice { + println!("{}", each); + } +} + +fn first_word(s: &str) -> &str { + let bytes = s.as_bytes(); + + for (i, &item) in bytes.iter().enumerate() { + if item == b' ' { + return &s[..i]; + } + } + + &s +} + +fn second_word(s: &str) -> &str { + let bytes = s.as_bytes(); + + for (i, &item) in bytes.iter().enumerate() { + if item == b' ' { + return &s[i + 1..]; + } + } + + &s +} + +fn last_word(s: &str) -> &str { + let bytes = s.as_bytes(); + let mut result = ""; + + for (i, &item) in bytes.iter().enumerate() { + if item == b' ' { + result = &s[i + 1..]; + } + } + + &result +} |