12 lines
446 B
Diff
12 lines
446 B
Diff
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--- trees.c
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+++ trees.c
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@@ -870,7 +870,7 @@
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bi_windup(s); /* align on byte boundary */
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put_short(s, (ush)stored_len);
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put_short(s, (ush)~stored_len);
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- zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
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+ if (stored_len != 0) zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
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s->pending += stored_len;
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#ifdef ZLIB_DEBUG
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s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
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