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minimum/maximum builtins

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This commit is contained in:
Robin Voetter
2021-07-25 05:34:11 +02:00
committed by Andrew Kelley
parent 50a29f7c21
commit cdeea3b094
18 changed files with 416 additions and 0 deletions
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58
test/behavior/maximum_minimum.zig Normal file
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const std = @import("std");
const builtin = @import("builtin");
const mem = std.mem;
const expect = std.testing.expect;
const expectEqual = std.testing.expectEqual;
const Vector = std.meta.Vector;
test "@maximum" {
const S = struct {
fn doTheTest() !void {
try expectEqual(@as(i32, 10), @maximum(@as(i32, -3), @as(i32, 10)));
try expectEqual(@as(f32, 3.2), @maximum(@as(f32, 3.2), @as(f32, 0.68)));
var a: Vector(4, i32) = [4]i32{ 2147483647, -2, 30, 40 };
var b: Vector(4, i32) = [4]i32{ 1, 2147483647, 3, 4 };
var x = @maximum(a, b);
try expect(mem.eql(i32, &@as([4]i32, x), &[4]i32{ 2147483647, 2147483647, 30, 40 }));
var c: Vector(4, f32) = [4]f32{ 0, 0.4, -2.4, 7.8 };
var d: Vector(4, f32) = [4]f32{ -0.23, 0.42, -0.64, 0.9 };
var y = @maximum(c, d);
try expect(mem.eql(f32, &@as([4]f32, y), &[4]f32{ 0, 0.42, -0.64, 7.8 }));
var e: Vector(2, f32) = [2]f32{ 0, std.math.qnan_f32 };
var f: Vector(2, f32) = [2]f32{ std.math.qnan_f32, 0 };
var z = @maximum(e, f);
try expect(mem.eql(f32, &@as([2]f32, z), &[2]f32{ 0, 0 }));
}
};
try S.doTheTest();
comptime try S.doTheTest();
}
test "@minimum" {
const S = struct {
fn doTheTest() !void {
try expectEqual(@as(i32, -3), @minimum(@as(i32, -3), @as(i32, 10)));
try expectEqual(@as(f32, 0.68), @minimum(@as(f32, 3.2), @as(f32, 0.68)));
var a: Vector(4, i32) = [4]i32{ 2147483647, -2, 30, 40 };
var b: Vector(4, i32) = [4]i32{ 1, 2147483647, 3, 4 };
var x = @minimum(a, b);
try expect(mem.eql(i32, &@as([4]i32, x), &[4]i32{ 1, -2, 3, 4 }));
var c: Vector(4, f32) = [4]f32{ 0, 0.4, -2.4, 7.8 };
var d: Vector(4, f32) = [4]f32{ -0.23, 0.42, -0.64, 0.9 };
var y = @minimum(c, d);
try expect(mem.eql(f32, &@as([4]f32, y), &[4]f32{ -0.23, 0.4, -2.4, 0.9 }));
var e: Vector(2, f32) = [2]f32{ 0, std.math.qnan_f32 };
var f: Vector(2, f32) = [2]f32{ std.math.qnan_f32, 0 };
var z = @maximum(e, f);
try expect(mem.eql(f32, &@as([2]f32, z), &[2]f32{ 0, 0 }));
}
};
try S.doTheTest();
comptime try S.doTheTest();
}