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21 lines
776 B
Zig
21 lines
776 B
Zig
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const std = @import("std");
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const expect = std.testing.expect;
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test "vector @shuffle" {
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const a = @Vector(7, u8){ 'o', 'l', 'h', 'e', 'r', 'z', 'w' };
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const b = @Vector(4, u8){ 'w', 'd', '!', 'x' };
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// To shuffle within a single vector, pass undefined as the second argument.
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// Notice that we can re-order, duplicate, or omit elements of the input vector
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const mask1 = @Vector(5, i32){ 2, 3, 1, 1, 0 };
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const res1: @Vector(5, u8) = @shuffle(u8, a, undefined, mask1);
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try expect(std.mem.eql(u8, &@as([5]u8, res1), "hello"));
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// Combining two vectors
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const mask2 = @Vector(6, i32){ -1, 0, 4, 1, -2, -3 };
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const res2: @Vector(6, u8) = @shuffle(u8, a, b, mask2);
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try expect(std.mem.eql(u8, &@as([6]u8, res2), "world!"));
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}
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// test
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