-void ConBuffer_AddLine(conbuffer_t *buf, const char *line, int len, int mask);
-int ConBuffer_FindPrevLine(conbuffer_t *buf, int mask_must, int mask_mustnot, int start);
-int ConBuffer_FindNextLine(conbuffer_t *buf, int mask_must, int mask_mustnot, int start);
+void ConBuffer_AddLine(conbuffer_t *buf, const char *line, int len, unsigned mask);
+int ConBuffer_FindPrevLine(conbuffer_t *buf, unsigned mask_must, unsigned mask_mustnot, int start);
+int ConBuffer_FindNextLine(conbuffer_t *buf, unsigned mask_must, unsigned mask_mustnot, int start);