Add buf_decrpos()

1 files changed, 2 insertions, 1 deletions

diff --git a/buffer.h b/buffer.h
index 85f913d..5b55414 100644
--- a/buffer.h
+++ b/buffer.h
@@ -49,7 +49,8 @@ buffer* buf_newcopy(const buffer* buf);
 void buf_setlen(buffer* buf, unsigned int len);
 void buf_incrlen(buffer* buf, unsigned int incr);
 void buf_setpos(buffer* buf, unsigned int pos);
-void buf_incrpos(buffer* buf, int incr); /* -ve is ok, to go backwards */
+void buf_incrpos(buffer* buf, unsigned int incr);
+void buf_decrpos(buffer* buf, unsigned int decr);
 void buf_incrwritepos(buffer* buf, unsigned int incr);
 unsigned char buf_getbyte(buffer* buf);
 unsigned char buf_getbool(buffer* buf);