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authorDave Gauer <dave@ratfactor.com>2021-02-09 18:36:57 -0500
committerDave Gauer <dave@ratfactor.com>2021-02-09 18:36:57 -0500
commit55ad7c32f2d534b1fbd438204d21738f958c51a5 (patch)
tree16be4b53193105a759b3eec25be5e664d41c428d /33_iferror.zig
parentcf0920de31e9b5f3c5ba6de19a1b4c8d0c58b907 (diff)
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Moved exercises to exercises because exercises
Diffstat (limited to '33_iferror.zig')
-rw-r--r--33_iferror.zig49
1 files changed, 0 insertions, 49 deletions
diff --git a/33_iferror.zig b/33_iferror.zig
deleted file mode 100644
index ed92e94..0000000
--- a/33_iferror.zig
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Let's revisit the very first error exercise. This time, we're going to
-// look at a special error-handling type of the "if" statement.
-//
-// if (foo) |value| {
-//
-// // foo was NOT an error; value is the non-error value of foo
-//
-// } else |err| {
-//
-// // foo WAS an error; err is the error value of foo
-//
-// }
-//
-// We'll take it even further and use a switch statement to handle
-// the error types.
-//
-const MyNumberError = error{
- TooBig,
- TooSmall,
-};
-
-const std = @import("std");
-
-pub fn main() void {
- var nums = [_]u8{2,3,4,5,6};
-
- for (nums) |num| {
- std.debug.print("{}", .{num});
-
- var n = numberMaybeFail(num);
- if (n) |value| {
- std.debug.print("=4. ", .{});
- } else |err| switch (err) {
- MyNumberError.TooBig => std.debug.print(">4. ", .{}),
- // Please add a match for TooSmall here and have it print: "<4. "
- }
- }
-
- std.debug.print("\n", .{});
-}
-
-// This time we'll have numberMaybeFail() return an error union rather
-// than a straight error.
-fn numberMaybeFail(n: u8) MyNumberError!u8 {
- if(n > 4) return MyNumberError.TooBig;
- if(n < 4) return MyNumberError.TooSmall;
- return n;
-}