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use const for variables that are never modified

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Adam Millerchip 2021-12-26 13:24:01 +09:00
parent f0357ea91c
commit 39e432748e
4 changed files with 6 additions and 6 deletions
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2
exercises/021_errors.zig
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@ -16,7 +16,7 @@ const MyNumberError = error{
const std = @import("std"); const std = @import("std");
pub fn main() void { pub fn main() void {
var nums = [_]u8{ 2, 3, 4, 5, 6 }; const nums = [_]u8{ 2, 3, 4, 5, 6 };
for (nums) |n| { for (nums) |n| {
std.debug.print("{}", .{n}); std.debug.print("{}", .{n});

2
exercises/031_switch2.zig
View file

@ -15,7 +15,7 @@ pub fn main() void {
const lang_chars = [_]u8{ 26, 9, 7, 42 }; const lang_chars = [_]u8{ 26, 9, 7, 42 };
for (lang_chars) |c| { for (lang_chars) |c| {
var real_char: u8 = switch (c) { const real_char: u8 = switch (c) {
1 => 'A', 1 => 'A',
2 => 'B', 2 => 'B',
3 => 'C', 3 => 'C',

4
exercises/033_iferror.zig
View file

@ -29,12 +29,12 @@ const MyNumberError = error{
const std = @import("std"); const std = @import("std");
pub fn main() void { pub fn main() void {
var nums = [_]u8{ 2, 3, 4, 5, 6 }; const nums = [_]u8{ 2, 3, 4, 5, 6 };
for (nums) |num| { for (nums) |num| {
std.debug.print("{}", .{num}); std.debug.print("{}", .{num});
var n = numberMaybeFail(num); const n = numberMaybeFail(num);
if (n) |value| { if (n) |value| {
std.debug.print("={}. ", .{value}); std.debug.print("={}. ", .{value});
} else |err| switch (err) { } else |err| switch (err) {

4
exercises/063_labels.zig
View file

@ -103,7 +103,7 @@ pub fn main() void {
const wanted_ingredients = [_]u8{ 0, 3 }; // Chili, Cheese const wanted_ingredients = [_]u8{ 0, 3 }; // Chili, Cheese
// Look at each Food on the menu... // Look at each Food on the menu...
var meal = food_loop: for (menu) |food| { const meal = food_loop: for (menu) |food| {
// Now look at each required ingredient for the Food... // Now look at each required ingredient for the Food...
for (food.requires) |required, required_ingredient| { for (food.requires) |required, required_ingredient| {
@ -115,7 +115,7 @@ pub fn main() void {
// (Remember that want_it will be the index number of // (Remember that want_it will be the index number of
// the ingredient based on its position in the // the ingredient based on its position in the
// required ingredient list for each food.) // required ingredient list for each food.)
var found = for (wanted_ingredients) |want_it| { const found = for (wanted_ingredients) |want_it| {
if (required_ingredient == want_it) break true; if (required_ingredient == want_it) break true;
} else false; } else false;