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relax std.auto_hash requirements regarding vectors

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Previously, auto hash tests required vectors of different types to not
hash to the same value. Now, this is allowed.
This commit is contained in:
Andrew Kelley 2019-09-18 16:34:36 -04:00
parent 2038f4d45a
commit ef0f3ba905
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1 changed files with 6 additions and 3 deletions
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std/hash/auto_hash.zig
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@ -116,7 +116,7 @@ pub fn hash(hasher: var, key: var, comptime strat: HashStrategy) void {
// Otherwise, hash every element. // Otherwise, hash every element.
// TODO remove the copy to an array once field access is done. // TODO remove the copy to an array once field access is done.
const array: [info.len]info.child = key; const array: [info.len]info.child = key;
comptime var i: u32 = 0; comptime var i = 0;
inline while (i < info.len) : (i += 1) { inline while (i < info.len) : (i += 1) {
hash(hasher, array[i], strat); hash(hasher, array[i], strat);
} }
@ -357,10 +357,13 @@ test "testHash union" {
test "testHash vector" { test "testHash vector" {
const a: @Vector(4, u32) = [_]u32{ 1, 2, 3, 4 }; const a: @Vector(4, u32) = [_]u32{ 1, 2, 3, 4 };
const b: @Vector(4, u32) = [_]u32{ 1, 2, 3, 5 }; const b: @Vector(4, u32) = [_]u32{ 1, 2, 3, 5 };
const c: @Vector(4, u31) = [_]u31{ 1, 2, 3, 4 };
testing.expect(testHash(a) == testHash(a)); testing.expect(testHash(a) == testHash(a));
testing.expect(testHash(a) != testHash(b)); testing.expect(testHash(a) != testHash(b));
testing.expect(testHash(a) != testHash(c));
const c: @Vector(4, u31) = [_]u31{ 1, 2, 3, 4 };
const d: @Vector(4, u31) = [_]u31{ 1, 2, 3, 5 };
testing.expect(testHash(c) == testHash(c));
testing.expect(testHash(c) != testHash(d));
} }
test "testHash error union" { test "testHash error union" {