diff options
Diffstat (limited to '06_strings.zig')
-rw-r--r-- | 06_strings.zig | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/06_strings.zig b/06_strings.zig index cac40e0..2430884 100644 --- a/06_strings.zig +++ b/06_strings.zig @@ -3,38 +3,46 @@ // // We've already seen Zig string literals: "Hello world.\n" // -// Like the C language, Zig stores strings as arrays of bytes -// encoded as UTF-8 characters terminated with a null value. -// For now, just focus on the fact that strings are arrays of -// characters! +// Zig stores strings as arrays of bytes. +// +// const foo = "Hello"; +// +// Is the same as: +// +// const foo = [_]u8{ 'H', 'e', 'l', 'l', 'o' }; // const std = @import("std"); pub fn main() void { const ziggy = "stardust"; + // (Problem 1) // Use array square bracket syntax to get the letter 'd' from // the string "stardust" above. const d: u8 = ziggy[???]; + // (Problem 2) // Use the array repeat '**' operator to make "ha ha ha". const laugh = "ha " ???; + // (Problem 3) // Use the array concatenation '++' operator to make "Major Tom". // (You'll need to add a space as well!) const major = "Major"; const tom = "Tom"; const major_tom = major ??? tom; + // That's all the problems. Let's see our results: std.debug.print("d={u} {}{}\n",.{d, laugh, major_tom}); - // Going deeper: + // // Keen eyes will notice that we've put a 'u' inside the '{}' // placeholder in the format string above. This tells the - // print() function (which uses std.fmt.format() function) to - // print out a UTF-8 character. Otherwise we'd see '100', which - // is the decimal number corresponding with the 'd' character - // in UTF-8. + // print() function to format the values as a UTF-8 character. + // If we didn't do this, we'd see '100', which is the decimal + // number corresponding with the 'd' character in UTF-8. + // // While we're on this subject, 'c' (ASCII encoded character) // would work in place for 'u' because the first 128 characters // of UTF-8 are the same as ASCII! + // } |