diff options
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/zlib/zlib.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c index bc1b47c221..ce1139dc5d 100644 --- a/ext/zlib/zlib.c +++ b/ext/zlib/zlib.c @@ -3393,7 +3393,14 @@ static VALUE rb_gzfile_total_out(VALUE obj) { struct gzfile *gz = get_gzfile(obj); - return rb_uint2inum(gz->z.stream.total_out - ZSTREAM_BUF_FILLED(&gz->z)); + uLong total_out = gz->z.stream.total_out; + long buf_filled = ZSTREAM_BUF_FILLED(&gz->z); + + if (total_out >= (uLong)buf_filled) { + return rb_uint2inum(total_out - buf_filled); + } else { + return LONG2FIX(-(buf_filled - total_out)); + } } /* |