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-rw-r--r--libguile/strings.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libguile/strings.h b/libguile/strings.h
index 0d518d7e8..c13ccfda3 100644
--- a/libguile/strings.h
+++ b/libguile/strings.h
@@ -52,6 +52,7 @@
#define SCM_STRINGP(x) (SCM_NIMP (x) && (SCM_TYP7S (x) == scm_tc7_string))
+#define SCM_STRING_UCHARS(x) ((unsigned char *) (SCM_CELL_WORD_1 (x)))
#define SCM_STRING_CHARS(x) ((char *) (SCM_CELL_WORD_1 (x)))
/* Is X a writable string (i.e., not a substring)? */