diff options
Diffstat (limited to 'exercises')
| -rw-r--r-- | exercises/050_no_value.zig | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/exercises/050_no_value.zig b/exercises/050_no_value.zig index f5365cf..771e0ed 100644 --- a/exercises/050_no_value.zig +++ b/exercises/050_no_value.zig @@ -14,8 +14,8 @@ // // "undefined" should not be thought of as a value, but as a way // of telling the compiler that you are not assigning a value -// _yet_. Any type may be set to undefined, but attempting -// to read or use that value is _always_ a mistake. +// _yet_. Any variable may be set to undefined, but attempting to +// read its value before assigning one _always_ a mistake. // // * null // @@ -24,7 +24,7 @@ // The "null" primitive value _is_ a value that means "no value". // This is typically used with optional types as with the ?u8 // shown above. When foo equals null, that's not a value of type -// u8. It means there is _no value_ of type u8 in foo at all! +// u8. It means you have assigned foo to have _no value_! // // * error // @@ -32,10 +32,9 @@ // // Errors are _very_ similar to nulls. They _are_ a value, but // they usually indicate that the "real value" you were looking -// for does not exist. Instead, you have an error. The example -// error union type of MyError!u8 means that foo either holds -// a u8 value OR an error. There is _no value_ of type u8 in foo -// when it's set to an error! +// for does not exist. Instead of "no value", you have an error. +// The example error union type of MyError!u8 means that foo +// either holds a u8 value OR a MyError error. // // * void // @@ -55,7 +54,7 @@ // * undefined - there is no value YET, this cannot be read YET // * null - there is an explicit value of "no value" // * errors - there is no value because something went wrong -// * void - there will NEVER be a value stored here +// * void - there will NEVER be a value here // // Please use the correct "no value" for each ??? to make this program // print out a cursed quote from the Necronomicon. ...If you dare. |