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link to #1544

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This commit is contained in:
Josh Wolfe 2018-09-17 21:25:23 -04:00
parent 8f0618a5b1
commit 13645585fe
1 changed files with 3 additions and 1 deletions
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4
test/cases/bit_shifting.zig
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@ -15,13 +15,15 @@ fn ShardedTable(comptime Key: type, comptime mask_bit_count: comptime_int, compt
} }
fn getShardKey(key: Key) ShardKey { fn getShardKey(key: Key) ShardKey {
// https://github.com/ziglang/zig/issues/1544
// this special case is needed because you can't u32 >> 32. // this special case is needed because you can't u32 >> 32.
if (ShardKey == u0) return 0; if (ShardKey == u0) return 0;
// this can be u1 >> u0 // this can be u1 >> u0
const shard_key = key >> shift_amount; const shard_key = key >> shift_amount;
// TODO: this cast could be implicit if we teach the compiler that // TODO: https://github.com/ziglang/zig/issues/1544
// This cast could be implicit if we teach the compiler that
// u32 >> 30 -> u2 // u32 >> 30 -> u2
return @intCast(ShardKey, shard_key); return @intCast(ShardKey, shard_key);
} }