Loop over multiple arrays simultaneously: Difference between revisions
Loop over multiple arrays simultaneously (view source)
Revision as of 04:28, 2 November 2023
, 7 months ago→{{header|Zig}}: Add more examples and annotate version
imported>Maxima enthusiast No edit summary |
(→{{header|Zig}}: Add more examples and annotate version) |
||
Line 4,834:
=={{header|Zig}}==
===Limit by minimum length===
'''Works with''': 0.10.x
<syntaxhighlight lang="zig">const std = @import("std");
const arr1 = [_]u8{ 'a', 'b', 'c' };
const arr2 = [_]u8{ 'A', 'B', 'C' };
const arr3 = [_]u8{ '1', '2', '3' };
pub fn main() std.fs.File.WriteError!void {
const stdout = std.io.getStdOut();
const stdout_w = stdout.writer();
const n = std.math.min3(arr1.len, arr2.len, arr3.len);
try
}
}</syntaxhighlight>
'''Works with''': 0.11.x, 0.12.0-dev.1381+61861ef39
<syntaxhighlight lang="zig">const std = @import("std");
const arr1 = [_]u8{ 'a', 'b', 'c' };
const arr2 = [_]u8{ 'A', 'B', 'C' };
const arr3 = [_]u8{ '1', '2', '3' };
pub fn main() std.fs.File.WriteError!void {
const stdout = std.io.getStdOut();
const stdout_w = stdout.writer();
const n = @min(arr1.len, arr2.len, arr3.len);
for (arr1[0..n], arr2[0..n], arr3[0..n]) |arr1_e, arr2_e, arr3_e| {
try stdout_w.print("{c} {c} {c}\n", .{ arr1_e, arr2_e, arr3_e });
}
}</syntaxhighlight>
===Limit by length of first array===
'''Works with''': 0.10.x
This example will print up-to arr1 length (asserts that other arrays are at least that long).
<syntaxhighlight lang="zig">const std = @import("std");
const arr1 = [_]u8{ 'a', 'b', 'c' };
const arr2 = [_]u8{ 'A', 'B', 'C' };
const arr3 = [_]u8{ '1', '2', '3' };
pub fn main() std.fs.File.WriteError!void {
const stdout = std.io.getStdOut();
const stdout_w = stdout.writer();
for (arr1) |arr1_e, i| {
try stdout_w.print("{c} {c} {c}\n", .{ arr1_e, arr2[i], arr3[i] });
}
}</syntaxhighlight>
'''Works with''': 0.11.x, 0.12.0-dev.1381+61861ef39
<syntaxhighlight lang="zig">const std = @import("std");
const arr1 = [_]u8{ 'a', 'b', 'c' };
const arr2 = [_]u8{ 'A', 'B', 'C' };
const arr3 = [_]u8{ '1', '2', '3' };
pub fn main() std.fs.File.WriteError!void {
const stdout = std.io.getStdOut();
const stdout_w = stdout.writer();
for (arr1, 0..) |arr1_e, i| {
try stdout_w.print("{c} {c} {c}\n", .{ arr1_e, arr2[i], arr3[i] });
}
}</syntaxhighlight>
===Assert that arrays have equal length===
'''Works with''': 0.11.x, 0.12.0-dev.1381+61861ef39
This example will print up-to arr1 length (asserts that other arrays are exactly that long => asserts that lengths are equal).
<syntaxhighlight lang="zig">const std = @import("std");
const
const
const
pub fn main() std.fs.File.WriteError!void {
const stdout = std.io.getStdOut();
▲ for (a1) |_, i|
const stdout_w = stdout.writer();
▲ try std.io.getStdOut().writer().print("{c} {c} {d}\n", .{ a1[i], a2[i], a3[i] });
for (arr1, arr2, arr3) |arr1_e, arr2_e, arr3_e| {
try stdout_w.print("{c} {c} {c}\n", .{ arr1_e, arr2_e, arr3_e });
}
}</syntaxhighlight>
| |||