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authorSanjay K <sanjaykdragon@gmail.com>2020-03-05 15:52:54 -0500
committerSanjay K <sanjaykdragon@gmail.com>2020-03-05 15:52:54 -0500
commit135e5d47a7c395aece6f6022117fb20c82f2d3d4 (patch)
tree0375bd2e9e78e2833acba7e475c6284c63658d04 /exercises/option
parent8b9479071c0ac4f5dc1318358d7d7e3a19ce98e2 (diff)
feat: added excercise for option
Diffstat (limited to 'exercises/option')
-rw-r--r--exercises/option/README.md9
-rw-r--r--exercises/option/option1.rs23
2 files changed, 32 insertions, 0 deletions
diff --git a/exercises/option/README.md b/exercises/option/README.md
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+### Option
+
+#### Book Sections
+
+To learn about Option<T>, check out these links:
+
+- [Option Enum Format](https://doc.rust-lang.org/stable/book/ch10-01-syntax.html#in-enum-definitions)
+- [Option Module Documentation](https://doc.rust-lang.org/std/option/)
+- [Option Enum Documentation](https://doc.rust-lang.org/std/option/enum.Option.html)
diff --git a/exercises/option/option1.rs b/exercises/option/option1.rs
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+++ b/exercises/option/option1.rs
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+//option1.rs
+//Make me compile! Execute `rustlings hint option1` for hints
+
+//I AM NOT DONE
+
+//you can modify anything EXCEPT for this function's sig
+fn print_number(maybe_number: Option<u16>) {
+ println!("printing: {}", *maybe_number);
+}
+
+fn main() {
+ print_number(13);
+ print_number(99);
+
+ let mut numbers: [Option<u16>; 5];
+ for iter in 0..5 {
+ let number_to_add: u16 = {
+ ((iter * 5) + 2) / (4 * 16);
+ };
+
+ numbers[iter] = number_to_add;
+ }
+} \ No newline at end of file