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-rw-r--r--tools/lib/h5tools_str.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/h5tools_str.h b/tools/lib/h5tools_str.h
index eee87c9..f4610f0 100644
--- a/tools/lib/h5tools_str.h
+++ b/tools/lib/h5tools_str.h
@@ -26,7 +26,7 @@ typedef struct h5tools_str_t {
H5TOOLS_DLL void h5tools_str_close(h5tools_str_t *str);
H5TOOLS_DLL size_t h5tools_str_len(h5tools_str_t *str);
-H5TOOLS_DLL char * h5tools_str_append(h5tools_str_t *str, const char *fmt, ...);
+H5TOOLS_DLL char * h5tools_str_append(h5tools_str_t *str, const char *fmt, ...) H5_ATTR_FORMAT(printf, 2, 3);
H5TOOLS_DLL char * h5tools_str_reset(h5tools_str_t *str);
H5TOOLS_DLL char * h5tools_str_trunc(h5tools_str_t *str, size_t size);
H5TOOLS_DLL char * h5tools_str_fmt(h5tools_str_t *str, size_t start, const char *fmt);