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test_reduce_builtin.zig (462B) - Raw

      1 const std = @import("std");
      2 const expect = std.testing.expect;
      3 
      4 test "vector @reduce" {
      5     const V = @Vector(4, i32);
      6     const value = V{ 1, -1, 1, -1 };
      7     const result = value > @as(V, @splat(0));
      8     // result is { true, false, true, false };
      9     try comptime expect(@TypeOf(result) == @Vector(4, bool));
     10     const is_all_true = @reduce(.And, result);
     11     try comptime expect(@TypeOf(is_all_true) == bool);
     12     try expect(is_all_true == false);
     13 }
     14 
     15 // test