my ziglings
var to const when posssible
+27
-27
+3
-3
exercises/010_if2.zig
+3
-3
exercises/010_if2.zig
···
1
1
//
2
2
// If statements are also valid expressions:
3
3
//
4
-
// var foo: u8 = if (a) 2 else 3;
4
+
// const foo: u8 = if (a) 2 else 3;
5
5
//
6
6
const std = @import("std");
7
7
8
8
pub fn main() void {
9
-
var discount = true;
9
+
const discount = true;
10
10
11
11
// Please use an if...else expression to set "price".
12
12
// If discount is true, the price should be $17, otherwise $20:
13
-
var price: u8 = if ???;
13
+
const price: u8 = if ???;
14
14
15
15
std.debug.print("With the discount, the price is ${}.\n", .{price});
16
16
}
+1
-1
exercises/016_for2.zig
+1
-1
exercises/016_for2.zig
···
29
29
// Note that we convert the usize i to a u32 with
30
30
// @intCast(), a builtin function just like @import().
31
31
// We'll learn about these properly in a later exercise.
32
-
var place_value = std.math.pow(u32, 2, @intCast(u32, i));
32
+
const place_value = std.math.pow(u32, 2, @intCast(u32, i));
33
33
value += place_value * bit;
34
34
}
35
35
+1
-1
exercises/017_quiz2.zig
+1
-1
exercises/017_quiz2.zig
+2
-2
exercises/023_errors3.zig
+2
-2
exercises/023_errors3.zig
···
11
11
const MyNumberError = error{TooSmall};
12
12
13
13
pub fn main() void {
14
-
var a: u32 = addTwenty(44) catch 22;
15
-
var b: u32 = addTwenty(4) ??? 22;
14
+
const a: u32 = addTwenty(44) catch 22;
15
+
const b: u32 = addTwenty(4) ??? 22;
16
16
17
17
std.debug.print("a={}, b={}\n", .{ a, b });
18
18
}
+3
-3
exercises/024_errors4.zig
+3
-3
exercises/024_errors4.zig
···
21
21
pub fn main() void {
22
22
// The "catch 0" below is a temporary hack to deal with
23
23
// makeJustRight()'s returned error union (for now).
24
-
var a: u32 = makeJustRight(44) catch 0;
25
-
var b: u32 = makeJustRight(14) catch 0;
26
-
var c: u32 = makeJustRight(4) catch 0;
24
+
const a: u32 = makeJustRight(44) catch 0;
25
+
const b: u32 = makeJustRight(14) catch 0;
26
+
const c: u32 = makeJustRight(4) catch 0;
27
27
28
28
std.debug.print("a={}, b={}, c={}\n", .{ a, b, c });
29
29
}
+3
-3
exercises/025_errors5.zig
+3
-3
exercises/025_errors5.zig
···
15
15
};
16
16
17
17
pub fn main() void {
18
-
var a: u32 = addFive(44) catch 0;
19
-
var b: u32 = addFive(14) catch 0;
20
-
var c: u32 = addFive(4) catch 0;
18
+
const a: u32 = addFive(44) catch 0;
19
+
const b: u32 = addFive(14) catch 0;
20
+
const c: u32 = addFive(4) catch 0;
21
21
22
22
std.debug.print("a={}, b={}, c={}\n", .{ a, b, c });
23
23
}
+1
-1
exercises/031_switch2.zig
+1
-1
exercises/031_switch2.zig
+1
-1
exercises/036_enums2.zig
+1
-1
exercises/036_enums2.zig
···
9
9
// @enumToInt(). We'll learn about builtins properly in a later
10
10
// exercise.
11
11
//
12
-
// var my_stuff: u8 = @enumToInt(Stuff.foo);
12
+
// const my_stuff: u8 = @enumToInt(Stuff.foo);
13
13
//
14
14
// Note how that built-in function starts with "@" just like the
15
15
// @import() function we've been using.
+1
-1
exercises/045_optionals.zig
+1
-1
exercises/045_optionals.zig
+1
-1
exercises/047_methods.zig
+1
-1
exercises/047_methods.zig
···
78
78
};
79
79
80
80
var aliens_alive = aliens.len;
81
-
var heat_ray = HeatRay{ .damage = 7 }; // We've been given a heat ray weapon.
81
+
const heat_ray = HeatRay{ .damage = 7 }; // We've been given a heat ray weapon.
82
82
83
83
// We'll keep checking to see if we've killed all the aliens yet.
84
84
while (aliens_alive > 0) {
+1
-1
exercises/059_integers.zig
+1
-1
exercises/059_integers.zig
+1
-1
exercises/060_floats.zig
+1
-1
exercises/060_floats.zig
···
43
43
//
44
44
// We'll convert this weight from tons to kilograms at a
45
45
// conversion of 907.18kg to the ton.
46
-
var shuttle_weight: f16 = 907.18 * 2200;
46
+
const shuttle_weight: f16 = 907.18 * 2200;
47
47
48
48
// By default, float values are formatted in scientific
49
49
// notation. Try experimenting with '{d}' and '{d:.3}' to see
+2
-2
patches/patches/010_if2.patch
+2
-2
patches/patches/010_if2.patch
+2
-2
patches/patches/023_errors3.patch
+2
-2
patches/patches/023_errors3.patch
+2
-2
patches/patches/045_optionals.patch
+2
-2
patches/patches/045_optionals.patch