X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/mLib/blobdiff_plain/18c831dcd0ae4d660c70ccac69d27ed2a97851be..118a549cc82f07b4c8b13aeebd866d2912ff3f1b:/struct/dstr.h

diff --git a/struct/dstr.h b/struct/dstr.h
index 3ef3051..e1851a2 100644
--- a/struct/dstr.h
+++ b/struct/dstr.h
@@ -141,19 +141,19 @@ extern void dstr_ensure(dstr */*d*/, size_t /*sz*/);
 /* --- @dstr_putc@ --- *
  *
  * Arguments:	@dstr *d@ = pointer to a dynamic string block
- *		@char ch@ = character to append
+ *		@int ch@ = character to append
  *
  * Returns:	---
  *
  * Use:		Appends a character to a string.
  */
 
-extern void dstr_putc(dstr */*d*/, char /*ch*/);
+extern void dstr_putc(dstr */*d*/, int /*ch*/);
 
 #define DPUTC(d, ch) do {						\
   dstr *_d = (d);							\
   DENSURE(_d, 1);							\
-  _d->buf[_d->len++] = (ch);						\
+  *((unsigned char *)_d->buf + _d->len++) = (ch);			\
 } while (0)
 
 /* --- @dstr_putz@ --- *