diff options
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/compress/flate/Decompress.zig | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/std/compress/flate/Decompress.zig b/lib/std/compress/flate/Decompress.zig index ef9e551a15..ca2d45df21 100644 --- a/lib/std/compress/flate/Decompress.zig +++ b/lib/std/compress/flate/Decompress.zig @@ -245,7 +245,8 @@ fn readInner(d: *Decompress, w: *Writer, limit: std.Io.Limit) (Error || Reader.S var dec_lens: [286 + 30]u4 = @splat(0); var pos: usize = 0; while (pos < hlit + hdist) { - const sym = try cl_dec.find(@bitReverse(try d.peekBits(u7))); + const peeked = @bitReverse(try d.peekBits(u7)); + const sym = try cl_dec.find(peeked); try d.tossBits(sym.code_bits); pos += try d.dynamicCodeLength(sym.symbol, &dec_lens, pos); } @@ -377,7 +378,7 @@ fn takeBits(d: *Decompress, comptime T: type) !T { error.EndOfStream => return takeBitsEnding(d, T), }; const needed_bits = @bitSizeOf(T) - remaining_bits; - const u: U = @intCast((next_bits << needed_bits) | (next_int & ((@as(usize, 1) << needed_bits) - 1))); + const u: U = @intCast(((next_int & ((@as(usize, 1) << needed_bits) - 1)) << remaining_bits) | next_bits); d.next_bits = next_int >> needed_bits; d.remaining_bits = @intCast(@bitSizeOf(usize) - @as(usize, needed_bits)); return switch (@typeInfo(T)) { @@ -434,7 +435,7 @@ fn peekBits(d: *Decompress, comptime T: type) !T { error.EndOfStream => return peekBitsEnding(d, T), }; const needed_bits = @bitSizeOf(T) - remaining_bits; - const u: U = @intCast((next_bits << needed_bits) | (next_int & ((@as(usize, 1) << needed_bits) - 1))); + const u: U = @intCast(((next_int & ((@as(usize, 1) << needed_bits) - 1)) << remaining_bits) | next_bits); return switch (@typeInfo(T)) { .int => u, .@"enum" => @enumFromInt(u), @@ -983,11 +984,10 @@ test "fuzzing tests" { .{ .input = "puff27", .err = error.InvalidDynamicBlockHeader }, }; - inline for (cases, 0..) |c, case_no| { + inline for (cases) |c| { var in: Reader = .fixed(@embedFile("testdata/fuzz/" ++ c.input ++ ".input")); var aw: Writer.Allocating = .init(testing.allocator); defer aw.deinit(); - errdefer std.debug.print("test case failed {}\n", .{case_no}); var decompress: Decompress = .init(&in, .raw, &.{}); const r = &decompress.reader; |
