argpar: sync with upstream - adjust to iterator API

[lttng-tools.git] / src / common / string-utils / string-utils.h

diff --git a/src/common/string-utils/string-utils.h b/src/common/string-utils/string-utils.h
index 8f47abbc302109131fbc52704949d6c4447c66e6..57cf4ecbfb5ae2316b2af392be9a348bd18bf655 100644 (file)
--- a/src/common/string-utils/string-utils.h
+++ b/src/common/string-utils/string-utils.h
@@ -35,6 +35,13 @@ size_t strutils_array_of_strings_len(char * const *array);
  *
  * Return 0 on success, -ENOMEM on failure.
  */
-int strutils_append_str(char **str, const char *append);
+C_LINKAGE int strutils_append_str(char **str, const char *append);
+
+/*
+ * Like `strutils_append_str`, but the appended string is formatted using
+ * `fmt` and the following arguments.
+ */
+C_LINKAGE ATTR_FORMAT_PRINTF(2, 3)
+int strutils_appendf(char **s, const char *fmt, ...);
 
 #endif /* _STRING_UTILS_H */